Timpani dampening

How do I get timpani notes to stop from ringing after the passage ends? I am using NI Symphony Series timpani, and it has a damp keyswitch which works great manually, but I’m unsure how to get Dorico to activate it.

Try sending the damp keyswitch via a Playing/Playback Technique or custom Expression Map entry.

In the Expression Map editor you can also specify actions for NOTE OFF events…
maybe you can set up something functional in combination with note length conditions…