So I have an Ultralite Mk4 - now what?

I’d like to use my new audio interface to its fullest potential. I currently use it as a standard audio interface to hook my DAW with all my hardware. I would like to make use of the DSP of the ultralite, namely compress then main outs, and recors the internal reverb as well.

How can I achive that, i.e. (a) how to get additional channels that only contain compressed version of other tracks/mixes and (b) record reverb tails from a certain channel mix?

Best,

K