I'm trying the new YSUpload system here for the first time.
Looking pretty good and user-friendly. Fantastic idea and execution by Wingzfan99 there!
The addon is a replacement of the rudder, throttle and stick with the horrible blue screen that you see when beginning a mission.
When overwriting these files you will see a cockpit of either a P-40 or an Su-27 depending of preference:

Then moving the joystick you will see movement, and rudder and throttle also move as they should.
Only silly thing is that the sky moves down when it should be going up, and vice-versa. Couldn't think of a way to get that right as the stick and scenery are part of the same SRF and limited animation was possible.
Hope this Upload thing works!
