NEW EXPRESSIONS VISUALIZATION BUG
The new expressions visualization should show you the whole expression when you hit it once in the timeline.
Thank you for filing this bug report.
Can you please clarify the problem? Screenshots would be helpful.
In the October 2018 release of After Effects CC (version 16.0), clicking into the expression field will expand the height of the expression field to fit as much of the expression as possible, but will not expand past the bottom of the Timeline panel. (In other words, it will show the whole expression if the expression is short, but it if it’s longer than can be viewed in the Timeline panel, the expression field will only be expanded to the bottom of the Timeline.)
If this is not functioning for you, please provide more detail. Or if you desire different behavior than described above, please tell us what you’d like to see changed.
I hope to write in the right place, from what I understand I'm rediscovering this same problem (see screenshot) as soon as I go to edit the expression and / or insert a new one the panel to compile is too long and I can't see the expression while I compile it, is there a way to fix the problem?
Thank you very much!
Joe Clay commented
Can we get it to expand past the bottom of the timeline? That would be helpful. Ideally it could even pop up into a floating window or something.