motion graph editor problem

I can't see the problem on my end. To edit a property, first click on one on the left. For example to edit rotation, click on the Z property under rotation. You can add anchor points using the 'Add Anchor Point' button at the bottom left corner of the graph.

on the left click the z (to select it), then click the add anchor points icon.

if you are unable to select z, close and restart animate.

if that fails, reset your preferences:

remove

Win:

C:\Users\<username>\AppData\Local\Adobe\Animate CC <version>\ and

C\Users\<username>\AppData\Roaming\Adobe\Animate\<version>\

Mac:

/Users/<username>/Library/Application Support/Adobe/<Animate CC version>/ and /Users/<username>/Library/Preferences/Adobe/Animate/<version>/