^ You could take the drugs before you go in. That would solve the problem. Even if the dog smelled it, they wouldn't be able to find anything on you.
Anyways, in Ableton, there is a sampler (called Impulse, I think) that lets you load multiple samples at once, and then gives you a kind of piano roll where you can arrange them into loops. The difference is that each key is a different sample, instead of the same sample at a different pitch, which is what you have in the regular piano roll. Does anyone know if there is anything like that bundled with FL Studio? Or maybe a free (or cheap) VST that can do the same thing?
Edit: Figured it out. FPC is the thing that does that. It has a piano roll built into it.