I have been switching back and forth between the Clean and Dirty channels
on LE456 (LePou's Engl Amp sim and a few others) and it does work as
long as the mouse CURSOR is hovering over the thing (in my case the
channel selector) that I want to CLICK!
Go to http://rhdesigns.browseto.org/mouseemulator.html and download the
Mouse Emulator. Its free and only 10kb.
The program recognizes the following keys: (NumLock must be ON!)
Keypad 1 - Left mouse button
Keypad 2 - Right mouse button
Keypad 3 - Middle mouse button
Keypad 4, 5, 6, 8 - Moves the mouse left, down, right and/or up respectively.
Keypad 7 - Mousewheel up (Scroll)
Keypad 9 - Mousewheel down (Scroll)
Keypad / - Toggle Left mouse button (Useful for RSI users)
Keypad * - Toggle Right mouse button (Useful for RSI users)
Keypad - - Toggle Middle mouse button (Useful for RSI users)
You can exit Mouse Emulator by right clicking on the mouse icon in the taskbar.
It sure took me a longtime to find something like this.....