
TABLE OF CONTENTS

2. BASIC FUNCTIONS OF THE BRAILLE SENSE U2	
2.1 How to Enter Commands 
2.1.1 Basic Alerts and Messages 
2.2 Concept of the Menu 
2.2.1 Control Symbols 
2.3 Using the Function Keys 
2.4 The AC Power Supply and the Battery Pack 
2.5 Basic Explanation of Disks, folders, and files
2.6 Controlling the Volume, Speed, and Pitch of the TTS 
2.7 Using Speech and Braille 
2.8 Entering Text 
2.8.1 The ASCII table for computer Braille input 
2.8.2 Inputting/searching for Control characters 
2.9 Multi Tasking 
2.10 Switching Media Modes 
2.11 Switching Key lock 
2.12 Print Spool 
2.13 One-Handed Mode 
2.14 Using Typing Mode 
2.15 Common Hotkeys 

2. Basic Functions of the Braille Sense U2

2.1 How to Enter Commands
The commands used to operate the Braille Sense U2 are comprised of various combinations of the Braille and function keys. In this user manual, the "-"(dash) is used to indicate that keys should be pressed simultaneously. For example, "Space-z (dots 1-3-5-6)" indicates that the user should press "space" and "z (dots 1-3-5-6)" at the same time. This manual also contains expressions like "Space-2-4-6". This means that the spacebar with dots 2, 4, and 6 should be pressed and released simultaneously. 
If you are in a menu or dialog, and your cursor is placed on the command you want to execute, you can execute most commands by pressing "Enter". If you want to cancel the execution of a command, and return to your previous location, press "Space-z (dots 1-3-5-6)." "Space-z (dots 1-3-5-6)" is a very important command to remember, as it allows you to abort programs and menus if you have pressed keys accidentally.

2.1.1 Basic Alerts and Messages
There are instances where the Braille Sense U2 alerts you to events for which you have asked it to notify you. For example, by default, the Braille Sense U2 checks the Schedule Manager when you power on, and notifies you of any appointments scheduled for that day.  When you are notified of an appointment, you can interact with the Schedule Manager as you normally would. To exit the Schedule Manager, press "Space-z (dots 1-3-5-6)" or "Space-e (dots 1-5)," and you are returned to your previous location.  
If you do not want to be alerted of "today's schedule" when you turn on the Braille Sense U2, you can turn off the "Check today's schedule" option in the "Global Options" dialog. (See chapter 3)
When you turn on the Braille Sense U2, you are returned to the same location at which you turned the unit off. The Braille Sense U2 announces the name of the running program and your current position or status.  If you turn off the Braille Sense U2 while using the Word Processor, when you power on, it announces the program name, file name, input mode and file protection status. 
When you connect the AC adapter to the Braille Sense U2, the Braille Sense U2 speaks the message "AC adapter connected." When you disconnect it, the Braille Sense U2 says, "AC adaptor disconnected."

2.2 Concept of the Menu
The menu on the Braille Sense U2 provides you with a list of programs, actions, or options from which you can select. If a menu item has a submenu, selecting it brings up another list of choices.
Moving among the menu items is very simple.
Press "Space-m (dots 1-3-4)" or F2 to bring up the menu. Press the "Up" scroll key or "Space-1" to move to the previous item, and press the "Down" scroll key or "Space-4" to move to the next item. You can also press the menu's shortcut key, usually the first letter of the menu name, to quickly jump to and execute that menu item. Often menu items can also be executed instantly with a hotkey, enabling you to perform the desired action without accessing the menus. 
Shortcut keys are displayed in parentheses following the menu names. Hotkeys generally consist of a modifier such as "Enter," "Space," or "Backspace", pressed simultaneously with a letter or dot combination. These are displayed following the shortcut keys.
For example, if you are in the Word Processor, and press "Space-m (dots 1-3-4)" or "F2," then press "Enter" on "File," you hear "New (n) pull down Enter-n". The word "New" is the menu option. YOU would press the letter "n (dots 1-3-4-5)" to jump to "New" from within the "File" menu. Press "Enter-n" to access the "New" document command from anywhere in the Word Processor. The n is the shortcut key and "Enter-n" is the hotkey. It is important to note that some hotkey commands are global, thus will work from anywhere on the unit, and some are program specific. For example, if you want to activate the "new document" option in the Word Processor. You cannot press "Enter-n" from the "Program" menu to activate this option. You must be in the Word Processor for "Enter-n" to activate the "new document" command. 
You can also navigate the menus manually. Move to the next menu item by pressing "Space-4." Move to the previous menu item by pressing "Space-1." To move to the first item in the menu, press "Space-1-2-3." To move to the last item in the menu, press "Space-4-5-6." The corresponding menu name is displayed on the Braille display, and the menu name is spoken through the TTS (text to speech) engine. To repeat the name of the menu item, press "Space-r (dots 1-2-3-5)." 
When you are placed on an item you want to execute, press "Enter". If the item you chose has a submenu or dialog, pressing "Enter" opens the submenu or dialog. If the item you chose is a command, pressing "Enter activates the command. This is referred to as "selection." 
When a menu item activates a submenu, the right direction arrow sign (>were   is displayed after the name of the corresponding menu on the Braille display and the Braille Sense U2 announces "pull down" after the menu item name.  If the menu item is a dialog box, the ellipsis sign (...) is displayed after the menu item name on the Braille display. The Braille Sense U2 also speaks the message, "common dialog."
Let's begin going through the various menus. First, turn the unit on by pushing the power switch to the right. Now, bring up the "Program" menu by pressing "F1". The "Program" menu is the main menu of the Braille Sense U2. You can access all of the programming, option settings, utilities, and help from this menu. The items in the "Program" menu are File Manager, Word Processor, Sense Navigation, Address Manager, Schedule Manager, E-mail, Media Player, FM Radio, Web Browser, DAISY Player, Bluetooth Manager, Database Manager, Extras, Social Networking, Utilities, Global Options, and Help. 
The first item in the "Program" menu is "File Manager". If "Space-4" is pressed, the next menu item is displayed and spoken. Pressing "Space-4" repeatedly, will continue your navigational progress down the list of items in the "Program" menu. When you reach the bottom of the list, the "Help" menu item is displayed as it is the last item in the "Program" menu. 
You could also jump quickly to the "Help" menu item by pressing "Space-4-5-6" when "File Manager" is displayed. Press "Space-1-2-3," and the Braille Sense U2 jumps back to the top item in the "Program" menu and again speaks and displays "File Manager".  As explained above, to execute a submenu or program from the "Program" menu, press "Enter". If you are in a submenu, and wish to return to the main "Program" menu, press "Space-e (dots 1-5)."
The "F1" command for accessing the "Program" menu is an example of a global hotkey. This means that pressing the "F1" key takes you to the "Program" menu immediately from anywhere on the Braille Sense U2, whether you are in a submenu, a file, a dialog or an application. When you press "F1", you are always placed at the top of the "Program" menu; and File Manager, is displayed and spoken.

2.2.1 Control Symbols 
The Braille Sense U2 uses several control symbols to note the type of information being displayed: examples are list items, menus, and edit boxes. These symbols can appear "Before" or "After" the text, or the appearance of this information may be set to "off". The way this information is displayed is determined by the "Control information" setting in the "Global Options" dialog. The default value is set to "Before." Note: In the Web Browser, the control symbols are displayed even if the "Control information" is set to "off".
AS explained above, the control symbol appears before or after the text of the control. For example, if "Control information" is set to "before", and you bring up the Word Processor's program menu, The Braille Sense displays, "MN File (f) pulls down".
The following table shows the types of controls and the symbols that are used to indicate them.
Name
Symbol
Comments
Menu
MN
It means the menu that has submenus.
Menu item
MI
It means the menu that does not have a submenu.
List item
LI
The item name after this symbol represents the name of the item in any list.
(Ex: "LI database" or "LI sample.txt" in the "file list" of the file manager)
Edit box
EB
The item name after this symbol represents the edit box name. You can find the edit box after the edit box name. In the web browser, the symbol "EB" may be followed by an edit box without an edit box name. Edit boxes that begin with the symbol "EB" are one line.
(Ex: "EB Last name: (cursor)" in the address manager program or "EB (cursor)" 
Multi edit box
MEB
This also represents the edit box. But you can type in more than one line in the edit box.
(Ex: "MEB Subject: (cursor)" in the e-mail program) Computer edit box CE
It means there is an edit box to input ASCII Braille.
The edit box after this symbol should allow ASCII Braille to be typed in.
(Ex: "CE To: (cursor) " in the email program)
Combo box
CB
It represents the combo box in which you can choose an item by pressing the up scroll button or the down scroll button.
(Ex: "CB Type: *.*" in the "Open dialog box" of the word processor program)
Edit combo box
ECB
You can choose the desired item by pressing the up or down scroll button, or by directly typing in the item name.
(Ex: "ECB File name: (cursor) " in the "Open dialog box" of the word processor program)
Prompt button
PB
PB follows any question in which you have to choose "Yes" or "No." You can toggle between "Yes" and "No" by pressing the "Space" or the "Backspace" button. 
(Ex: When you exit from the word processor, "PB Save: Yes") 
Static box
ST
ST is followed by the current status.
(Ex: "ST noname.hbl/insert mode/write" in the word processor program)
Link
LN
It means there is a link in the web page.
Anchor
ANC
It means there is an anchor in the web page.
Radio button
RB
It represents a radio button, which allows you to choose an item by pressing the up scroll button, down scroll button, space, or Backspace. Also it cycles between items when pressing this key.
(Ex: "RB Attribute: Write" in the "Information dialog box" of the file manager)
Radio button select
SRB
It means that the radio button is selected in the web browser
Radio button unselect
URB
It means that the radio button is not selected in the web browser.
Check box check
SCHB
It means that the check box is selected.
Check box uncheck
UCHB
It means that the check box is not selected.  Note: Links, anchors, and radio buttons are controls that are only used in the Web Browser. 
The symbols enable you to understand what type of input control or menu you are working with. For example, if "MN," "MI," or "LI" are displayed, you know you can move from one item to the previous and next items by pressing the "Up" and "Down" scroll keys. If "ECB," "EB," "CB," or "MEB" are displayed, you know you are in an input area where you must type the desired text. If "BT" is displayed, you can press "Enter" to activate the "button".

2.3 Using the Function Keys
There are four function keys on the Braille Sense U2. You can use these function keys to open the menus, cancel tasks, and move to other items. 
As described previously, the "F1" key opens the Braille Sense U2 "Program" menu from anywhere on the unit. You can also use "F1" and a program's shortcut key to open that program from anywhere on the Braille Sense U2. For example, if you are in the Word Processor, and want to open the Web Browser, you could press "F1-b (dots 1-2)" to open the Web Browser. 
From within each program, the "F2" key opens the program specific menu. Note: as previously explained, you may also use "Space-m (dots 1-3-4)" to perform this function. 
The "F3" key has the same function as "tab ("Space-4-5").  "Space-F3" serves the same function as pressing "shift-tab ("Space-1-2")." 
The "F 4" key functions as the "escape" key does on a personal computer. You can also use "Space-e (dots 1-5)" to perform this function.  Please note that the "escape" key does not exit a program, as does "Space-z (dots 1-3-5-6)", but rather, exits items menus, dialogs, or prompt boxes.
You can use the function keys in combination to perform various other tasks. Pressing "F1" and "F2" at the same time functions as "page up" on a personal computer. Pressing the "F3" and "F 4" keys together serves as "page down". The combination of "F1" and "F 4" moves you to the task list (similar to the task bar in Microsoft Windows). Pressing the "F2" and "F3" keys simultaneously cycles you through the running programs; similar to pressing "alt-tab" on your PC. The Task List and task switching are explained in greater detail in section 2.9, "Multi-Tasking".

2.4 The AC Power Supply and the Battery Pack 
It is often useful to know the remaining battery power on the Braille Sense U2 so you can determine how much time you have before you must change the battery or connect to AC power. If the remaining battery power falls below 15 percent, the Braille Sense U2 indicates the battery power is low. 
To check the battery power status, press "Space-1-6." The unit displays the following 2 items:
1. Battery power level
2. Power source (battery or AC power)
The battery power level represents the percentage of the remaining battery power. The power source indicates whether the unit is being operated using the battery or the AC power supply. If the battery power level drops under 15 percent, the Braille Sense U2 displays the battery status on the Braille display, and it announces that the battery has less than 15 percent of its power remaining. If the battery power level falls below five percent, the Braille Sense U2 gives you a warning indicating that your battery power level is under five percent, and the Braille Sense U2 will be automatically turned off in one minute, unless you connect it to an AC power supply.
Let's explore the detachable battery pack. When the Braille Sense U2 is shipped, the battery pack is not installed. This is done to prevent damage during shipping. When you insert the battery in to the Braille Sense U2 for the first time, the unit may display an inaccurate battery power level. Before using the Braille Sense U2 for the first time, please charge the battery for at least six hours. You may use the unit during the initial charge, however, it is recommended if you do, that the unit remain connected to AC power for at least seven hours to fully charge the battery. 
When you remove the battery from the Braille Sense U2, make sure your unit is turned off; especially when the AC power adapter is not connected. If you remove the battery while the unit is on and AC power is not connected, you will lose all data stored in RAM, including open documents, emails, and contacts or appointments that have not been backed up. If you remove the battery, and do not have the Braille Sense U2 connected to AC power, the data stored in RAM remains for about 1 hour. To save your RAM data the Braille Sense U2 must be connected to an AC power adapter or battery pack within an hour; or this data is lost.
[Notice for the use of CD-ROM/external hard drive]
 *When you connect external CD-ROM to the Braille Sense U2, please use only power adapter for CD-ROM. It takes about one minute until CD-ROM is recognized on the Braille Sense. 
 *Please avoid using both external hard disk and CD-ROM on the Braille Sense U2 at the same times. Or, Braille Sense U2 is short of power supply and then power may be shut off. 
[Notice for the use of USB cable charger]
 *Braille Sense U2 can be charged via USB cable. However, charging with USB cable can supply less power to Braille Sense U2 than AC adapter charger.  While charging Braille Sense U2 via USB cable, if you use Braille Sense U2 continuously, battery might not be charged or battery might be dead. If you want to charge Braille Sense U2 via USB cable, please do not use Braille Sense U2 or turn off Braille Sense U2. 
 *If you use a different USB cable, Braille Sense U2 might not recognize external hard disk/memory or Braille Sense U2 might not be charged. Please use always USB cable which is provided with Braille Sense U2. 
[Instructions of charging dead battery]
 *When battery is dead, even though you connect the AC adapter to Braille Sense U2, the unit might not wake up. After charging a few hours, Braille Sense U2 can wake up. If you want to use Braille Sense U2 as soon as charging, remove the battery from the Braille Sense U2 and connect AC adapter to Braille Sense U2. After Braille Sense wakes up, connect battery to Braille Sense U2. And then you can use Braille Sense while charging. 

2.5 Basic Explanation of Disks, folders, and files
Think of the flash memory on the Braille Sense U2 like a big bookshelf in a library. You can create partitions on a bookshelf to organize books into categories. Think of the "folders" on the Braille Sense U2 as being similar to these categorical partitions. The books in each section can be compared to the "files" on the Braille Sense U2. You can save files into any folder at your discretion. If you create meaningful folder names and properly organize your files into them, it will make for easier retrieval of files when you need to access them later.
When the Braille Sense U2 is shipped from the factory, the name given to the flash memory in the Braille Sense U2 is "flashdisk". You can create folders on this "flashdisk" in any way that you prefer.
You can also expand your available storage by adding additional storage devices, such as a Secure Digital card or USB flash drive. The Secure Digital card is named, "sd". A USB flash drive appears as "USB." If you decide to add any of these memory devices, you can create folders, and save files on them just as you can the flashdisk. 

2.6 Controlling the Volume, Speed, and Pitch of the TTS 
You can change the volume, speed, and pitch of the voice used on the Braille Sense U2. Press "Backspace-F 4" to increase the volume. Press "Backspace-F1" to decrease the volume. Press "Space-F 4" to increase the speech rate. Press "Space-F1" to decrease the speech rate. Press "Enter-F 4" to raise the pitch and "Enter-F1" to lower it. 
When you press any of the above key combinations, the Braille Sense U2 announces the status of its volume, rate, or pitch. The changes in the characteristics of the voice remain in effect until you change them again, or a hard reset is performed either manually or due to lack of power to the unit for an extended period of time.
Note: the volume of the voice is controlled independent of the master volume on the unit, thus, you can adjust it above or below the volume of the system sounds, media playback, etc using the Voice volume control described above. You can control the master volume or "Main Volume" of the unit using "Backspace-Enter-F1" to lower it and "Backspace-Enter-F4" to raise it. 
You can also control the rate of the foreign language TTS voice independent of the main speech rate. You can adjust the TTS for other languages, the "Sub Voice rate", in the "Global Options" dialog.

2.7 Using Speech and Braille 
When using the Braille Sense U2, you can choose to read using Braille only or speech only. You can also use both Braille and speech simultaneously. However, you cannot turn off both Braille and speech as you would have no method of receiving information from the Braille Sense U2. Use "Backspace-F2" to toggle the speech on and off. Press "Backspace-F3" to toggle the Braille on and off. Please refer to section 3.2.1 in this user manual for more information.

2.8 Entering Text
In a document, "edit box" or "multi edit box" on the Braille Sense U2, you can enter either grade 1 or grade 2 Braille. However, some areas of the unit, such as the "to" field of the E-mail program, contain a "computer edit box" requiring you to enter text in computer Braille. To enter a capital letter in computer Braille, use the upper case indicator (Space-u (dots 1-3-6)" before the letter you want capitalized. For example, if you want to enter H in a computer edit box, press "Space-u (dots 1-3-6)" then "dots 1-2-5". If you press "Space-u" twice, caps lock is turned on. Press "Space-u" again to turn off caps lock.  
You can also press "Space-Backspace" simultaneously with the letter to capitalize it. To input the "at sign," you must use one of these capitalization methods in conjunction with the dot 4. You may either use "Space-u" followed by dot 4, or "Space-Backspace-dot 4". 
To enter numbers in contracted or uncontracted Braille, use the "number sign (dots 3-4-5-6)" followed by the number. However, when using computer Braille, you use no number sign and must enter numbers as "dropped" numbers or Nemeth numbers. 

2.8.1 The ASCII table for computer Braille input
Exclamation mark: dots 2-3-4-6
Quotation mark: dot 5
Number sign: dots 3-4-5-6
Dollar sign: dots 1-2-4-6
Percent: dots 1-4-6
Ampersand: dots 1-2-3-4-6
Apostrophe: dot 3
Left parenthesis: dots 1-2-3-5-6
Right parenthesis: dots 2-3-4-5-6
Asterisk: dots 1-6
PLUS: dots 3-4-6
Comma: dot 6
Dash: dots 3-6
Period: dots 4-6
Slash: dots 3-4
0: dots 3-5-6
1: dot 2
2: dots 2-3
3: dots 2-5
4: dots 2-5-6
5: dots 2-6
6: dots 2-3-5
7: dots 2-3-5-6
8: dots 2-3-6
9: dots 3-5
Colon: dots 1-5-6
Semi colon: dots 5-6
Less than: dots 1-2-6
Equal: dots 1-2-3-4-5-6
Great than: dots 3-4-5
Question mark: dots 1-4-5-6
At sign: Space-u (dots 1-3-6), dot 4
A: Space-u (dots 1-3-6), dot 1
B: Space-u (dots 1-3-6), dots 1-2
C: Space-u (dots 1-3-6), dots 1-4
D: Space-u (dots 1-3-6), dots 1-4-5
E: Space-u (dots 1-3-6), dots 1-5
F: Space-u (dots 1-3-6), dots 1-2-4
G: Space-u (dots 1-3-6), dots 1-2-4-5
H: Space-u (dots 1-3-6), dots 1-2-5
I: Space-u (dots 1-3-6), dots 2-4
J: Space-u (dots 1-3-6), dots 2-4-5
K: Space-u (dots 1-3-6), dots 1-3
L: Space-u (dots 1-3-6), dots 1-2-3
M: Space-u (dots 1-3-6), dots 1-3-4
N: Space-u (dots 1-3-6), dots 1-3-4-5
O: Space-u (dots 1-3-6), dots 1-3-5
P: Space-u (dots 1-3-6), dots 1-2-3-4
Q: Space-u (dots 1-3-6), dots 1-2-3-4-5
R: Space-u (dots 1-3-6), dots 1-2-3-5
S: Space-u (dots 1-3-6), dots 2-3-4
T: Space-u (dots 1-3-6), dots 2-3-4-5
U: Space-u (dots 1-3-6), dots 1-3-6
V: Space-u (dots 1-3-6), dots 1-2-3-6
W: Space-u (dots 1-3-6), dots 2-4-5-6
X: Space-u (dots 1-3-6), dots 1-3-4-6
Y: Space-u (dots 1-3-6), dots 1-3-4-5-6
Z: Space-u (dots 1-3-6), dots 1-3-5-6
Left bracket: Space-u (dots 1-3-6), dots 2-4-6
Back slash: Space-u (dots 1-3-6), dots 1-2-5-6
Right bracket: Space-u (dots 1-3-6), dots 1-2-4-5-6
Carat: Space-u (dots 1-3-6), dots 4-5
Underscore: Space-u (dots 1-3-6), dots 4-5-6
Grave accent: dots 4
a: dot 1
b: dots 1-2
c: dots 1-4
d: dots 1-4-5
e: dots 1-5
f: dots 1-2-4
g: dots 1-2-4-5
h: dots 1-2-5
i: dots 2-4
j: dots 2-4-5
k: dots 1-3
l: dots 1-2-3
m: dots 1-3-4
n: dots 1-3-4-5
o: dots 1-3-5
p: dots 1-2-3-4
q: dots 1-2-3-4-5
r: dots 1-2-3-5
s: dots 2-3-4
t: dots 2-3-4-5
u: dots 1-3-6
v: dots 1-2-3-6
w: dots 2-4-5-6
x: dots 1-3-4-6
y: dots 1-3-4-5-6
z: dots 1-3-5-6
Left brace: dots 2-4-6
Vertical bar: dots 1-2-5-6
Right brace: dots 1-2-4-5-6
Tilde: dots 4-5

2.8.2 Inputting/searching for Control characters
Control characters are codes in a character set, which do not in themselves represent written symbols in computing. For example, all entries in the ASCII table below code 32 such as Form Feed (FF), TAB, and Carriage Return (CR). You can input and search for control characters in Braille documents.

2.8.2.1 Inputting Control characters
Control characters can only be entered in Braille documents. To enter control characters in Braille documents, follow these steps. 
(1) From within a Braille document, press "Space-x (dots 1-3-4-6)". "Control character" is announced to alert you to the fact that the next character you enter should be a control character. 
(2) Enter the control character. For example: "l (dots 1-2-3)" for Form Feed (FF) or "i (dots 2-4)" for TAB in alphabetical order. 
(3) The control character is entered into the Braille document.

2.8.2.2 Searching for a Control character
You can also search for control characters in Braille documents. To search for a control character, follow these steps.
(1) From within a Braille document, press "Space-f (dots 1-2-6)".
(2) "Text to find" is displayed.
(3) Press "Space-x (dots 1-3-4-6)".  "control character" is announced. 
(4) Enter the control character for which you want to search. 
(5) Press "Enter" to search for the control character.

2.9 Multi Tasking
Unique to the Sense notetakers is their ability to run up to seven tasks at once. The ability to run multiple applications simultaneously is referred to as multi-tasking. For example, you can work with the Word Processor while listening to music, and place calculations into a document at the same time. To continue with the example of the Word Processor and Media Player, open the Media Player and play a music file. While the audio is playing, press the "F1" key to bring up the "Program" menu and launch the Word Processor.
You cannot run more than seven applications at the same time. If you try to run a program that is currently running, The Braille Sense U2 does not open a new instance of the program, but rather, returns you to the instance of the program that is already running. For example, while working with a document called "Notes" you decide to execute the "File Manager." Next, you navigate to a document called "journal" in the file list and press "Enter." The Word Processor does not load a second time, but rather, "journal" is opened in the same instance of the Word Processor in which "notes" is already loaded. You can switch among multiple open documents in a single instance of the Word Processor. Use "Tab (Space-4-5 or F3)" or "shift-tab (Space-1-2 or Space-F3)" to cycle forward or backward through the currently open documents. Switching documents is explained in more detail in section 4, which covers the Word Processor.
If you have pressed "F1" to bring up the "Program" menu, or "F1-F 4" to open the Task List and you decide not to access a different application, you can press "escape" ("Space-e" or "F 4") to return to your previous location on the unit. To switch between currently running programs press "F1-F 4" to open the Task List. The Task List shows all the currently running programs in list form. To return to any application, simply navigate to it and press "Enter". 
You can use "F2-F3" to immediately cycle among all running programs without opening the Task List. This is similar to using "alt-tab" on your PC. If you are running three programs and are in the second program, pressing "F2" and "F3" moves you to the third program. If you press "F2-F3" again, you are placed in the first program.
In the above case, if you were to press "Space-z (dots 1-3-5-6)" to close the currently open program, you are then placed in the previous program. However, if there is only one program running, pressing "Space-z" closes the program and places you in the "Program" menu. 

2.10 Switching Media Modes
The media buttons on the front panel perform different functions according to the location of the "Media Mode" switch. 
If you slide the "Media Mode" switch to the left-most position, the Braille Sense U2 announces, "radio mode" and the media buttons control operation of the FM Radio. If you place the "Media Mode" switch in the center position, the Braille Sense U2 says, "DAISY mode" and the media buttons control playback of Daisy content. If you slide the "Media Mode" switch to the right-most position, the Braille Sense U2 announces, "media mode" and the media buttons control media playback.
It is very important to pay attention to the position of the "Media Mode" switch to achieve desired operation of the media buttons. For example, if you are using the Media Player, if the "Media Mode" switch is placed in the left-most position, the media buttons on the front panel control operation of the FM Radio even though your focus is in the Media Player. More detailed explanations of the functions of the Media buttons is given in the FM Radio, Daisy Player, and Media Player sections in this manual.

2.11 Switching Key lock
You can disable the keys on the Braille Sense U2 to prevent the accidental pressing of keys using the key "Lock" switch on the front panel.
When the key "Lock" switch is placed in the left-most position, Braille Sense U2 announces, "all keys locked". This means all keys on the unit are disabled including the on/off switch. If the key "Lock" switch is placed in the center position, Braille Sense U2 says, "top panel locked". This means you can continue to use the buttons and switches on the front panel (media mode switch, media buttons and on/off switch), however, you cannot use any of the keys on the top face of the unit. If the key "Lock" switch is placed in the right-most position, Braille Sense U2 announces, "unlocked". This indicates all keys are operational (Braille keyboard, media buttons, scroll keys, function keys, Media Mode switch and On/Off switch).
Note: the "RESET" button is always operational, regardless of location of the key "Lock" switch.
If you want to lock and unlock only the keys on the front media panel, you can do this by pressing the "Back" and "Forward" media buttons simultaneously. If you press "Back-Forward" the unit announces "Media keys locked", and the media panel does not respond to key presses. If you press the keys again, the unit announces "Media keys unlocked", and the media buttons are again operational. 

2.12 Print Spool
The Braille Sense U2 has a print spool function. This function enables the Braille Sense U2 to do other tasks while printing to an ink-printer or Braille embosser. For example, if you send data to your printer or embosser, you are immediately returned to where you were before the print command was executed. If you want to check the Print Spool dialog box after you have given the print command, press "Space-2-3-4-6." A dialog box appears with three controls: a list containing information about files that are being printed, a "Cancel" button, and a "Close" button. You can cycle through the three controls by pressing "tab (Space-4-5)" or "shift-tab (Space-1-2)." In the information list, you can move among the items by pressing "Space-4" or "Space-1." If you open the dialog box when nothing is printing, "no items" appears in the list and only the "Close" button is available.
While printing, the information list contains the following: "running program name," "printing file name," "printer type," "the number of copies," and either "printing" or "ready." For example, let's assume that we are printing one copy of "sample.txt" from the Word Processor. The info list displays, "program: Word Processor, file: sample.txt, printer, copy: 1, printing." If you are using a Braille embosser, "embosser" appears instead of "printer." If nothing is printing but, (the printer is waiting), "ready" is displayed instead of "printing." If you print something from the E-mail program, "emailtemp.txt," is displayed instead of the file name. If you are printing from the Address Manager, or the Schedule Manager, the message, "prn_ggtimegg.txt" is shown.
If you focus on a file in the info list, pressing "Enter" on "Cancel" cancels the printing of that file. If you tab to "Close," and press "Enter" the Print Spool dialog box is closed. Pressing "Space-z (dots 1-3-5-6)" also closes the Print Spool dialog.

2.13 One-Handed Mode
Braille Sense U2 provides a One-handed mode for users restricted to the use of one hand for Braille input. To turn on One-handed mode, hold down "F3" while powering the unit on. To turn off One-handed mode (i.e. to return to two-handed mode), hold down "F 4" while powering on the unit. You can also turn One-handed mode on or off in the "Global Options" dialog. 
When One-handed mode is on, the use the following methods to input text: 
1. To type a character, press the dots in any combination or order. When you have pressed all dots, press "Space" to complete the entry of the character. For example, if you want to type "h," you press "dot 1" and "dot 2" separately or together and then press "dot 5." Finally, press "Space".
2. To press a command that includes "Space," press "Space" both before and after the dot combination. For example, to press "Space-o (dots 1-3-5)," press "Space" then press "dot 1", "dot 3" and "dot 5" separately or together in any order. Then press "Space" again.
3. To press a command that includes "Backspace" or "Enter," press "Backspace" or "Enter" before the dot combination. Then press keys that make up the dot combination. Finally press "Space". For example, to press "Enter-l (dots 1-2-3)", press "Enter", and then press "dots 1-2-3." then, press "Space".
4. To press "Space," "Backspace" and "Enter", press the key twice. For example, to press "Space" to create a space between words, press "Space" twice.
The operation of the scroll keys, function keys, and media buttons remains the same as in normal mode. 
If One-handed mode is on, the Braille Sense U2 announces this each time it is powered on, as well as how to return to normal operation. 

2.14 Using Typing Mode
While you are typing in a document, you may wish to turn off the navigation keys, especially if you type very fast as you may accidentally navigate when you intend to enter text. To turn on "Typing Mode", 
follow these steps:
(1) Press "Backspace-Enter-c (dots 1-4)", from within a document.
(2) "Start typing mode" is announced and displayed.
When using "Typing Mode", if you press "Space-dot 4", instead of moving to the next line, the "Space" and "Dot 4" are entered into the document.
To cancel "Typing Mode", follow these steps:
(1) Press "Backspace-Enter-c (dots 1-4)" when in "Typing Mode".
(2) "End typing mode" is announced and displayed.
After "Typing Mode" is canceled, pressing "Space-dot 4" once again moves you to the next line as you would expect.

2.15 Common Hotkeys
1. Bring up the program menu: F1
2. Execute a program in the program menu F1-"shortcut key" (varies for each program)
3. Bring up the Task list: F1-F 4
4. Switch to previous program: Space-F2-F3
5. Switch to next program: F2-F3
6. Bring up the program specific menu: Space-m (dots 1-3-4) or F2
7. Exit: Space-z (dots 1-3-5-6)
8. Escape: Space-e (Space-1-5) or F 4
9. Move to the next control in a dialog box: Tab (Space-4-5 or F3)
10.  Move to the previous control in a dialog box: Shift-tab (Space-1-2 or Space-F3)
11. Move to the previous character: Space-3
12. Move to the next character: Space-6
13. Move to the previous line/item: Space-1
14. Move to the next line/item: Space-4
15. Move to the beginning of line/item: Home (Space-1-3)
16. Move to the end of line/item: End (Space-4-6)
17. Move to the top of a document or list: Ctrl-home (Space-1-2-3 or F1-F2-up scroll button)
18. Move to the bottom of a document or list: Ctrl-end (Space-4-5-6 or F3-F 4-down scroll button)
19. Move to the previous page or to the first item of the previous 32-item group: Page up (space 1-2-6 or F1-F2)
20. Move to the next page or to the first item of the next 32-item group: Page down (space 3-4-5 or F3-F 4)
21. Scroll left: Up scroll key
22. Scroll right: Down scroll key
23. Move the cursor to each cell or move to an item: The corresponding cursor routing key
24. Read the current item again: Space-r (dots 1-2-3-5)
25. Say current time: Space-t (dots 2-3-4-5)
26. Display power status: Space-1-6
27. Open the "Global Options": Space-o (dots 1-3-5)
28. Online help: Space-h (dots 1-2-5)
29. Check software version: Space-v (dots 1-2-3-6) only from the Braille Sense U2 "Program" menu."
30. Display Network Status: Space-n (dots 1-3-4-5) from the Braille Sense U2 "Program" menu
31. Increase the voice volume: Backspace-F 4
32. Decrease the voice volume: Backspace-F1
33. Increase the voice rate: Space-F 4
34. Decrease the voice rate: Space-F1
35. Increase the voice pitch: Enter-F 4
36. Decrease the voice pitch: Enter-F1
37. One-handed mode on: hold down F3 while turning on
38. One-handed mode off: hold down F 4 while turning on
39. Bluetooth on/off: Backspace-3-4-5-6
40. Wireless LAN on/off: Backspace-1-4-5-6
41. Ethernet port on/off: Backspace-1-5-6
42. Scroll voice on/off: F3-up scroll key
43. Select Braille cursor type: F 4-up scroll key
