Someone already requested it in the past..
When I browse rigs I have some trouble with the volume gaps; for instance, if I play with one clean profile and the next one is quieter, I can't really compare them, unless I adjust the two volumes at the same level. Because of the Fletcher Munson curve, if the gap is big, usually the second one seems lacking bass.
So, a very nice feature for KPA users would be:
set the preferred amount of dbs in the system (or output) menu, choose your rig, press rig button and normalize the profile volume accordingly.
This could prevent output clipping too, which is very common in the rig exchange profiles.
Thanks!