Is possible? How to prepare this ambient set?

Hello, I’m trying to figure it out how to prepare one kind of set.

I have long samples (2min long) and I want to can exchange between each other when I want.

Also I have a rhythm (beat) and I want to can decide when I add the kick or only the hats (for example)

Before I was doing only with one long sample and changing patterns, the long sample with “plays free/one shot trk and it wasn’t any problem becouse was only one, and I was changing to different kind of beats with the pattern, but now that it’s more long samples I don’t figure it out how to do it. I tried to create super long scale with the harmony/sample but I need that all the pattern it is finish for start the other, and I would love that when I push the bottom for exchange the pattern would change all on 1 bar of time

I hope makes sense, if you don’t understand something I can try to explain you on more detail

Thanks a lot