Not sure if this is quite what you meant by utility kits, but I’ve been using what I think of as “prep patterns” to squeeze more mileage out of the UW’s limited sample memory.
In essence, I use these prep patterns to automate the creation of customized samples on the fly – single-cycle wave-based chords, for example, or stacked percussion hits whose individual elements have different FX settings. If I’m only going to use a sample during a single track in a liveset, I don’t want to waste ROM memory on it. So I create the sound on the spot using the RAM machines. The prep pattern only needs to loop once, so it can be done quickly during track transitions.
The details depend on what sort of sample you want, but for chords, set up a few ROM machines to play 1-cycles tuned to a chord, and dedicate a few GND— machines’ LFOs to affect the ROM tracks as needed (to create envelopes, etc.) Have a RAM-R machine record the results at the same time. Presto, a raw chord hit ready for use in your next pattern.
If you like, do more to it by running the RAM-P version through the MD’s effects in the next measure and resample the results again using another RAM-R machine. (Rinse, repeat as needed.) You can use the finished sample by incorporating the last used RAM-P machine in a performance pattern, and overwrite its contents later on.
Recently I’ve been doing this several times over the course of a single liveset and it works a treat 
1 Like