I have added a Selecta and a Doepfer Slew Limiter, because they are simple, and looking them up should explain the concept well. You should look into other modules with similar features before making any decision, and don't feel like you need to do it this way. I have also added a breakout for the Beatstep Pro to represent its outputs, but as far as I know, this is not even available and you do not need it.
https://cdn.modulargrid.net/img/patches/modulargrid_133545.jpg
This is simple enough. You send the sequencer output into the slew limiter and it smooths out the rising and/or falling edges of your signal, making it more wavy and round so it sounds less like a "sequence" and more like an LFO or repeating smooth randomness that you can control with the sequencer knobs. It kinda lets you "draw" modulation in a limited sense.
https://cdn.modulargrid.net/img/patches/modulargrid_133546.jpg
This is the gates/triggers and envelopes combined in the Selecta. One envelope goes to the VCA so it can be brought down and used for rhythmic variety. The logic circuit combines them in ways where they don't do weird stuff at the moment when both envelopes are still running. The switch section can be used for lots of things, but one potential use is to extend the amount of things to feed into the OR combiner and create something where you can switch between lots of different kinds of gate and trigger patterns. This module is passive, so it only works with positive voltage, but that's fine for gates and output from the Fuji and Pam's. Different kinds of logic will produce different results, so be sure to look into all the different kinds and see what's available (Erica Synths make a Pico module where you can switch between different modes, Instruo has one with a bunch of types and cascading inputs and Takaab makes a collection of logic modules that can be powered from a single cable).
I don't own a Pam's New Workout, so you'll have to kind of imagine from here whether or not it still helps you. I imagine there's plenty it can do in this context, especially since it apparently also just puts out positive voltage, so you can send it to cheap passive modules and see what happens. Obviously, this should just be taken as a rough outline of a way to use these modules and expand them with very minimal extra spending. What happens from here should be determined with a lot of trial and error through experimenting with what you already have here.
Don't expect you'll get this much feedback on most things, either. My job is slow right now. You and Youtube should be able to take it from here.

