FSX plane conversion help!

Hello, i have “successfully” ported several planes from fsx into MSFS, however, i have a problem that i can not figure out:
Planes with full 3d cockpit gauges port absolutely fine, saving for some cfg issues, however, planes which use XML and/or DLL gauges have several issues with their panels, and they are completely unflyable, unless you use the copilot.
Is there a way to alias panels to the default planes, like we used to do in FSX and P3D?, can somebody point me to a tutorial on that?
Thanks a lot!

Anyone?, please help.