AppleScript

Rob,

Thanks a lot, this works perfectly; at least, with only one instance  
of R running. This is rather logical. But nevertheless, since I  
regularly use several instances in parallel, I should once do  
something about this issue. If anyone has ideas, they are warmly  
welcome! Probably something like "last used" / "frontmost" instance.

Just for the protocol, if somebody else is interested as well:

Change

		tell process "SubEthaEdit"

to
		tell process "Xcode"

For the keyboard shortcut, you have to go to XCode Preferences and  
disable Cmd+Return in the "Build" menu in "Key bindings" for "Build  
and Go". Go to the Script menu, choose "Edit user scripts", press the  
"+" and "Add new script file". Add your script and the keyboard  
shortcut.

Cheers again, Gregor.

tell application "System Events"
	if UI elements enabled then
		tell process "SubEthaEdit"
			activate
			set frontmost to true
		end tell
		key down command
		keystroke "c"
		delay 1
		key up command
	else
		tell application "System Preferences"
			activate
			set current pane to pane "com.apple.preference.universalaccess"
			display dialog "UI element scripting is not enabled. Check  
\"Enable access for assistive devices\""
		end tell
	end if
end tell

set y to the clipboard

tell application "R"
	cmd y
	activate
end tell