Completely messed up frame rate of compound clips and project compared to how shot.

Hi Guys
I have no idea how I did this but I shot ALL my footage in 25p but then somehow I managed to create compound clips in 50p and the actual project in 50p.
The entire video is edited and finished now so I cant just re-edit it.
Is there anything I can do to modify the compound clips and final project to be 25p while still retaining full editing capabilities on the master project file?
When I select MODIFY in the inspector it wont allow me to change the frame rate.

So just to reiterate:

Footage shot in 25p
My multicam clip is 25p
The multicam clip is then in a compound clip which is 50p
Multiples of this one compound clip are then in a 50p project


Thanks in advance.

You cannot modify the frame rate of a project once you place a clip into the timeline and the frame rate becomes established. You can, however create a new empty project specifying the frame rate you want (i.e 25P) and then copy the clips from the existing project into it. They will conform to the 25P rate.