Making a drum kit with guitar pro

I wanted to use guitar pro to make a guitar drum kit.
I understood that you have to put a wave files (or is it midi) in the beatbuddy manager environment. but if for example I want to put an E note in this folder, how long should the E note be in terms of time (1 count 1/2 count or a 1/4 count) so that I can use it later in the midi editor of the BeatBuddy?