Sandra,
as a workaround until you get this...

special percussion applications at the beginning and end of a song can often be snipped and then looped.

Works for things like drum rolls, cymbal swells, fancy intros, fancy endings.... etc

Just find a song in which there is a percussion ditty you like, import it to an audio editor, snip it as cleanly as you can at the most logical beginning and end ...

then you can either paste it as a standalone snippet, or make a repeating loop out of it.