In the part bin go to the top level group, then go into the 'model content overview' group (half build buildozer picture), then go into 'all models currently loaded' group (3 houses picture).
That bin group lists all currently loaded ldr's (incl ones in mpds). From there you can locate your minifig model and add it to model C like any ldraw part.
That bin group lists all currently loaded ldr's (incl ones in mpds). From there you can locate your minifig model and add it to model C like any ldraw part.