Keep in mind: sequencers don't have to sequence pitch. Especially given the fact that you don't appear to have a quantizer in this rack, that behringer sequencer might be better suited to more timbral modulation in your rack.
Use one output of Pam's to provide the Clock In to the Beatstep (it probably wants 24 PPQ), the rest can provide either temo-synced LFOs or "weird clocks" using euclidean rythms and/or logic combinations between outputs. You can use those "weird clocks" to drive your in-rack sequencer, so that it's twiddling knobs in a way not directly related to what the Beatstep is doing.