OK, here’s a script for it. Note that I’m not sure if channel 3 you’re referring to is actually 3 or 2 (0-based) and also I’m not sure of the type of the CC message, but we’ll work this out.
When you install the script, you can go to the midi remote tab in the low zone, for manufacturer search for “Test”, and the remote will be named “BPM Change”. If the ports are not recognized automatically, you can input them manually for now.
Test_BPM Change.midiremote (1.5 KB)