How do you automate volume in a clip in a montage?

Ok, So I guess I’m dumb. I’ve been using this for a long time to author CD’s and this is the first time I needed to write a volume automation into a ciip in the Montage. I need to bring it down 3 DB before the next ciip begins.
How do I do it. Don’t see it in the manual.

There is an envelope on each clip. Should be visible by default. Double click on it to create handles.