hey reading this and i get the confusion but that function isn’t meant for copying say kick sequence over to snare. what it does is it copies the active track (say kick) to the kick track in a different pattern.
for example, you are in project 1 and you have a kick track you like on pattern 4. you can copy this kick now to other kick tracks in other patterns, say pattern 5 or pattern 7 such that now those patterns (which may have had some other kick sequence prior) will now have the kick sequence you just copied.