Cherry Tools allows you to at least program the 8200. Below is a manual way of programming the 8200 without Cherry Tools. I don't know if either Cherry Tools or the manual method works on the 8113 though. My 8200 can only be programmed over PS/2, but once programmed it will work over USB.
Manual methods which I got from a Cherry rep:
To Program a Key
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1. Close all programs and open an editor such as Notepad or go to a DOS Prompt
2. Enter program mode by holding down the following six key combination until you hear two beeps and ***MENU ENTRY*** is displayed in your editor.Ctrl (left) ,Shift (left), Alt(left), Ctrl (right), Shift (right), Alt (right)
3. Press the key you wish to set to program (to select it)
4. Enter the string of keystrokes that you want
5. Press the key a second time (to set to close the key)
6. Cancel the Find/Replace box using the mouse (for Windows 2000 and XP users) if it opens
Repeat Steps 3 through 6 for any other keys that you would like to program
7. Exit Program Mode by pressing the Spacebar (you should see ***MENU EXIT*** and hear two beeps)
To Set a Key Back to Default
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1. Close all programs and open an editor such as Notepad or go to a DOS Prompt
2. Enter program mode by holding down the following six key combination until you hear two beeps and ***MENU ENTRY*** is displayed in your editor. Ctrl (left) ,Shift (left), Alt(left), Ctrl (right), Shift (right), Alt (right)
3. Press the key you wish to set to default (to select it)
4. Press the key a second time (to set to default)
5. Cancel the Find/Replace box using the mouse (for Windows 2000 and XP users)
Repeat Steps 3 through 5 for any other keys that you would like to set to default
6. Exit Program Mode by pressing the Spacebar (you should see ***MENU EXIT*** and hear two beeps)