For mods like extra-utils that have tiers of compressed cobble/dirt, etc. These fill up quite a number of slots in the normal compression upgrade. it'd be nice to just use 1 each

To clarify, you'd like something that would just do something along the lines of 1 [slot] and that would: "Take [cobble] and compress it as much as you can". Am I correct in that assumption? If so, I'm probably not going to add it, simply because I have other things I'd rather spend that time on, plus I don't want the upgrade to be too powerful; using multiple slots seems like a good limiting factor to me. Thanks for the suggestion though!

Maybe a combined filter/compressor then, to assign it to pick up and combine any 1 type of item? (and save a tiny amount of upgrade points)

Perhaps. Seems like a valid but niche case; I think my time would be best spent on other features for now.

I'll leave it up for if I get more time though.

Advanced Compression Upgrade