How to bind apps from hidden directories to my keyboard's favorite top keys?

In the File Manager I can see the hidden directories. But when I try to navigate through the files to find my app, it won't show me the hidden directories, and I don't see an option to show them.
This is where I'm going to add the costume shortcut:
All Settings/Keyboard & Language/Shortcuts/Add Costume Shortcut/

This app I'm looking for is installed as Steam software. So normally I use the Steam shortcut to find it.

Thanks
Attached Thumbnails