I use this module to transpose pitch in some of my patches. But the description on Haraldswerks site says it can do a lot more. Maybe I have to play with it a little more just to test all of that out. I does what the name says it will do, move CV. Harald also release a Quad version to pair with the LFO and VCA. Didn’t build that one yet.
https://www.haraldswerk.de/Utilities/CV_Mover_Euro/CV_Mover_Euro.html
https://www.haraldswerk.de/Utilities/Quad_CV_Mover/Quad_CV_Mover.html
Difficulty to build: Easy