I don't know that there's a "CC for release" - but Controller Sets can be used.

http://www.motifator.com/index.php/support/view/working_with_and_understanding_physical_controllers

The owner's manual also explains controller sets.

Controller Sets match up an INPUT controller with an OUTPUT parameter. The guides don't use "offset" in the language. However, it seems that "offset" would summarize what's going on here. The guide tells you to set the volume parameter (the programmed value) to 0. And then this makes the controller set output equal to the volume. It also talks about "bias" - which, itself, is an offset. The programmed value is the bias -- and setting it to "0" removes the bias.

Not having a bias isn't the goal here - it's just a means to an end of creating the easiest case. There are valid reasons to have a non-zero programmed value.

You may want to bookmark this MOTIF master page - http://www.motifator.com/index.php/support/view/

Each sub-menu includes an 'Articles' selection (and demos, downloads, manuals, videos, etc) like the one Jason posted. You will find that these older articles are much more extensive than the ones for the later equipment and go into a lot more detail about the inner workings of the core functionality.

I suggest you copy these articles off to your pc so you will always have them available to review later. Much of the functionality of the current instruments is based on this older core.