oh right i get ya now, the first method that springs to mind is just to do it in the midi notation so when you get to the section you want to create this effect draw it in the sequence as midi notes for each sample that is going to do it, if your using battery you can assign voice groups to sample cells and limit maximum voices so you can repeat the sample as fast as you like and itll only let the one voice play at a time, so you wouldnt get into any nasty overlapping or clipping situations with different length samples being triggered repeatidly.

or you could mixdown a bar of the channels you want to be effected to one audio file then load the section into battery and activate the sample in battery via midi to repeatidly trigger the section from one of its pads again with the max voices set to 1 then depending on the density of your midi notes 1/16 , 1/32 1/64 etc and the length of decay on the samples envelope you could change the rate at which the effect happens, then at the end of the desired duration place the original channels sequence back in the midi lane to carry on as normal