Logic Pro 9 Key signiature of loops

Hi - new to logic - :thmbup:
is there a way of changing the key of a loop as it's added as a region? e.g. change a basic guitar strum to C, F and G so a combined rhythm region is created?
You can change the key of an Apple Loop, with the transposition settings in the inspector.

With other audio files the time and pitch machine.

I prefer the Melodyne plug myself.