Key-on/Key-off trigger?

Coming from an old MPC2000, I was used to have “KeyOn/Off” as a trigger option for samples, next to “OneShot” and “Loop” obviously.

Now, from the manual I gather that “Sustain” is something like that but you have to mess around with Nodes? When I tried to adjust or create nodes, it looks like that is global fora all pads/sounds?

I simply want to assign a “KeyOn/Off” trigger for some of the longer samples/loops so they don’t play until the end every time you hit them (inadvertently).

The manual’s explanation about Nodes mistyfies me, can anybody shine some light on this? Thanks!