If i wanted to do that, the first thing i would do is open panel.cfg in the panel folder with notepad and scroll down to see if there is a section that begins with [VCockpitXX] (were XX stands for a number starting with 01)
These sections describe which gauges are on a special texture sheet that can display gauges in the virtual cockpit. All do it is not necessary, most developers give there gauges names that makes them easy to identify, so you should look if and how many gauges there are which have PFD and MFD in there name.
If these are two of each, than you may be lucky, because one set could be for the pilot and the other for the copilot. All you have to doto see if thats true is flip the names of one PDF and MFD (just the names not the numbers behind them), reload the aircraft and see if anything has changed. It can take some trail and error for it to have the desired result and sadly, succes it not guaranteed.
If there is just one PFD and MFD entry, there is still a possibility to change things, but it's a much longer story. Basically what you have to try then is load the interior of your aircraft in modelconverterX, delete all the parts but the one you want to modify, Save that part and load it in Gmax, modify it (for example, exchange the polygons from the PFD with the MFD and vise verse), export the result as a MDL file, Merge that with your interior in modelconverterX, give the new part the properties of the part you want to replace, delete the old part, Export the interieur as a MDL file, load the aircraft in your sim and see if the operation was a succes.
In principle the basic modification is not very difficult, but you have to know how to use MCX and Gmax. Before i wrote this down, i tested it on the default B737-800 and in about half a hour it was standing on the runway with the PFD and MFD of the copilot flipped. However that is with a very basic aircraft and there is no way i can tell what will happen if you try it on something else.
proof of concept. By exchanging the names of gauge02 and 03 in the VC from Virtavia's C-17A Globemaster III i changed the screens at startup. However i had to use the buttons beneath screen 3 to operated screen 4 and vice verse, withs can be one of the pitfalls when you do a modification. The only way to know for sure is to try.
[Vcockpit01]
; MFDs
file=
Background_color=0,0,0
size_mm=1024,1024
visible=0
pixel_size=1024,1024
texture=$vpanel
gauge00=Virtavia_C-17!MFDX1_vc, 93, 56, 403, 422
gauge01=Virtavia_C-17!MFDX2_vc, 544, 56, 403, 422
gauge02=Virtavia_C-17!MFDX3_vc, 93, 520, 403, 422
gauge03=Virtavia_C-17!MFDX4_vc, 544, 520, 403, 422
[Vcockpit01]
; MFDs
file=
Background_color=0,0,0
size_mm=1024,1024
visible=0
pixel_size=1024,1024
texture=$vpanel
gauge00=Virtavia_C-17!MFDX1_vc, 93, 56, 403, 422
gauge01=Virtavia_C-17!MFDX2_vc, 544, 56, 403, 422
gauge02=Virtavia_C-17!MFDX4_vc, 93, 520, 403, 422
gauge03=Virtavia_C-17!MFDX3_vc, 544, 520, 403, 422