automating track mutes

I would like to mute 4 tracks from bar 3 through bar 21. I have tried setting the cursor to bar3, activating the
write buttons on the 4 tracks and clicking mute on on each of them. then moving to bar 21 and clicking mute off. All that happens is the mute goes off for the whole track and no automation appears to be writing. Is there a way to do this?

Maybe automate the volume instead?

I think you have to engage playback to write automation in real time. If you’d like to write automation offline, open an automation lane and insert automation data manually.

thanks, that’s what I was doing but I just figured out that I needed to click on the start and end points in the automation lane. I was just clicking the mute button on and off but that wasn’t doing anything.