Hy Dušan!
I'm not shure if we mean the same but if does you need to do this:In one style can be only one Audio drum but if you have midi drums that is Ok for you and just need the intro and ending of the audio drums you must select the audio drums you wish and simply put the vol-0 on the arr.a,b,c,d,Fill 1,2,3,4,and break 1,2,3,4.You must have the right lenght of intro and ending and that you can't change.
If this don't work then do a new style with style editor with the lenght you need and copy the other parts from the old style into new one.