I'm used to just being able to Cmd+Shift+C layers to pre-compose them, but suddenly that isn't working on my computer any more. I double-checked in my Adobe After Effects 13.5 Mac en_US Shortcuts file, and pre-compose wasn't there at all. I tried to add it, but that didn't help either. Any suggestions? This is one of my most-used shortcuts.
Check your preferences and your keyboard preferences is the System Settings