I bet there's one available, but didn't seem to find any.
Is it possible to create a script that creates a panel that has few controls in it:
-Pulldown menu to select a layer parameter (opacity, position etc)
-Textfield to input a desired expression
-pulldown menu to select betweem All layers or Selected layers
-Apply button
So, the script would then apply the inputted expression to an attribute of all / selected layers.
Expression creator
Moderator: byronnash
If you have problems creating a ScriptUI panel, here is a guide on how to install them, to start with. I can't answer the other one right now: http://sundstedt.blogspot.com/2007/11/h ... ts-to.html
Freelance CG Artist
Website: http://www.sundstedt.se
AEScript Blog: http://aescripts.blogspot.com/
CG Blog: http://www.sundstedt.blogspot.com
Website: http://www.sundstedt.se
AEScript Blog: http://aescripts.blogspot.com/
CG Blog: http://www.sundstedt.blogspot.com
I don't know of a specific script that does exactly what you want, but check this out. You could probably hack it fairly easily to do what you want.
http://www.redefinery.com/ae/view.php?i ... xprTweaker
http://www.redefinery.com/ae/view.php?i ... xprTweaker