Splitting a large model to print

I am relatively new and using Prusia Slicer to slice my designs. I have one that is too large for my build area that I would like to split in two. It seems the only way it will do the split is on the z axis which I can do if I stand my design on end. however I need to lay it down on it’s back to print in order to maximize strength while minimizing/eliminating support structures, which will multiply the print time excessively. Is there a way to get a model split into two components either along a different axis or be able to reorient the split pieces afterwards? I’m not tied to the Prusia edition Slicer by any means but thus far it’s the one that works best/easiest for me.

Thanks in advance.

With meshmixer you can do cuts.
Makersmuse has a tutorial for it.