FMC Swap

ello, just a quick question since I seem to be oblivious to the right way to do it :-/ theres an fmc on the freeware of ifly's 747, since I'm not a fan of the plane, I wanted to swap it over to the default 737, but the problem is that when I hit shift+6 (mine) the texture comes up, but the gauge itself is not there.
I copied over the info from the iflys panel to the 737 one perfectly, with the gauge info, and it still won't show up. I assume since it is a complicated(?) gauge, that theres more to it than I think there is.
Any help with this is appreciated as I've never gotten to use an FMC before...or if theres just a freeware fmc out there that can be imported into any panel that would work too ;D Thanks beforehand.
I copied over the info from the iflys panel to the 737 one perfectly, with the gauge info, and it still won't show up. I assume since it is a complicated(?) gauge, that theres more to it than I think there is.
Any help with this is appreciated as I've never gotten to use an FMC before...or if theres just a freeware fmc out there that can be imported into any panel that would work too ;D Thanks beforehand.