Set color and extruder for multiple bodies in Prusa Slicer

When importing a .3mf file into Prusa Slicer with multiple bodies the extruder is assigned randomly. If you have a model with any kind of text the amount of bodies can number in the hundreds. Right now you have to manually choose which extruder is connected to which body. You can choose multiple bodies at once, but many times Prusa Slicer hangs. It would be great to be able to have the color and material pre selected in the 3mf, or a better system of assigning extruder to body. Thanks