Help controlling OT with mpx8 please?!

I know this is probably pretty simple but can anyone please explain how I set it up to have the 8 pads of the mpx8 trigger the 8 tracks of the octatrack? and also so the pads are playing in gate mode if that’s the right term eg. when I hold down pad 1 the sample on track one plays while I hold the pad down and stops as soon as I release it…
I’ve never really used midi on any of my gear and I’ve looked up in the manuals but I don’t really understand what I’m trying to do
thanks if anyone can be bothered explaining!!