Handy Renamer
Handy Renamer is the fastest way to name layers is Adobe After Effects for character animation.
I got tired of renaming layers in After Effects for my characters. I tried different scripts that I found online, but I couldn't find one that could perform the task quickly and not break existing expressions.
So, I created Handy Renamer. What makes Handy Renamer a great tool for character animation?
- Presets to rename layers for the most common character components 
- Automatically select the next layer after naming the current layer (the default direction is down, but use the modifier key CTRL to move up) 
- If you use nulls with your layers, add a suffix to your layer name. SHIFT = _Start and ALT = _End 
- Add a custom prefix to your layer name by adding text to the input box 
- Updates existing expressions to reflect the new layer name. 
- Need to skip a layer? Buttons in the script allow you to quickly move up and down your layer stack.