I`m very happy with Adobe After Effects, but how is it even possible that you can`t change keyboard shortcuts in the application??! Adobe is well known for making very user freindly interfaces, so how can it be that such a simple command is not the the AE?? is there any chance it will be changed?
You can change keyboard shortcuts. You edit a text file. You can find the file by opening the Preferences dialog box and clicking the Reveal In Finder/Explorer button at the bottom of the General category.
If you want to make a feature request, you can do so here: