Samples into AR 101

Hi there folks!

I recently bought a Octatrack, and my analog setup is becoming what I’ve planned to play live.

One simply question. Is there any way that I can send samples and assign them into my AR (for each respective pad) besides grabbing the files from the computer?

In my case, can I send samples from the OT and assign into AR pads? Or can I use another sample to send this samples to the AR?

I’m a beginner using the both, so I believe one way is the MIDI connection possibilities between the both. I already know how to make the AR be “slave” of OT, but I don’t know how to assign samples into the AR.

Any tip is appreciated!!