I believe that for any custom material made or added to Cura, (for example I added colorFabb's LW-PLA) it should add just fine without the "not supported" material profile as long as the material type box is the same as one of the generic materials. That is the material type for the custom added material should be ABS, CPE, HIPS, Nylon, PC, PETG, PLA, PVA, or TPU 95A. Otherwise you would need to make a new printer profile from scratch. At least this worked for me. Cura 4.10.0