Thanks for all the responses!
I should mention that I'm specifically looking to be able to record in longer gate lengths via midi-cv conversion (or from within the eurorack sequencer itself like CV Key Rec Mode in the Eloquencer) for the use longer sustained envelopes where I'd like the gate length to be the amount of time that I've held a key or touch interface of some kind.
My problem currently with my Eloquencer, although I will be keeping it as it lends itself to results that I otherwise would not come up with is that I'd still like to be able to express a pattern that is in my head and the limit to gate lengths and number of steps is preventing me from doing so at the moment.
Has anyone encountered a similar situation? What did you end up doing, are there any sequencers in general, eurorack or other that will allow me to interact with my systems gates/envelopes etc in such a way?