Be sure to select the part. Once selected, the 'A. Reverb' should be enabled.

There are two reverb adjustments, M. Reverb for Midi and A. Reverb for Audio. They are enabled only when the associated track is selected. If the A. Reverb adjustment is not enabled, the track is not RT/RD.

The Aud. Rev button on the toolbar is an overall adjustment for all RD/RTs in the song.

R