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Thanks for asking.
Right now, Remote Buddy itself doesn't offer an AppleScript command to 
move your mouse to a specific location on your screen. It only offers 
to move it relative to your current mouse position. With a loop you 
might be able to move it to a specific corner.
That would, btw, not be the solution to your problem, though: you'd 
have to add a second action to move the cursor away from the screen 
corner, again. Otherwise, OS X would keep dimming your screen I guess.
Best regards, 
Felix Schwarz