On this topic's first page you can read this:
Originally Posted by popdog123
Oxygen ROM is a highly optimized AOSP rom with only a few added features. I also intend to keep it that way. There will be no added features unless the good people from Oxygen want to add them. The rom is like this for a reason. So requests like "can you add theme manager?", "can it make me coffee?" will be ignored.
So a file manager will be added if the Oxygen team (which popdog321 is not part of) will decide to do so. He's only porting
Oxygen ROM. That means he makes their
Android version work on our
phone as it is
. Nothing added, even if that would be more convenient.
I took the time to say all this to you because popdog321 won't; he will simply ignore your request, as stated above. Enjoy Oxygen!