I own an ADS Red Rover control, which used to work with earlier versions of Sonar. Apparently the ACT Plugin Module is no longer included with Cakewalk by Bandlab.
This old article indicates that the ACT is downloadable somewhere on the Cakewalk website, but the links in the article are now dead: http://gaga.cakewalk.com/Support/Knowledge-Base/2005241/RedRover-Control-Surface-Plug-in
Here's a product page for the Red Rover: https://www.musiciansfriend.com/pro-audio/ads-tech-redrover-audio-software-remote-control
(The manufacturer is defunct, so I can't check there.)
Any idea how to get this working with CbB?