how do you guys get like that repeative hi-hat roll sound on the ASR-10?
like on the MPC there's a Tap Tempo function

THEIR IS NOT TRICK TO DO THAT IN THE ASR-10. THEIR IS TO WAYS.

1.YOU DO IT MANUALLY.

2.DO IT IN THE STEP EDIT MODE( AND TELL THE MACHINE TO DO IT FOR YOU).

Just program the roll yourself.

As for tap tempo - Asr has tap tempo - but tap tempo has nothing to do with what you want.