If I select all the files and use ctrl + x c
it just asks me to change permissions to all the selected files individually and if I do it at the directory level all of the files inside are unaffected. Is there a way to change the permissions of all the selected files at once?
Chmod, Chown and Advanced Chown don't work recursively. Use External Panelize command to list all your files in a panel, select some or all files and execute Chmod.