How to setup a PrusaSlicer 2.0 material selection for FLEX?
How do I create a new material profile in PursaSlicer 2.0 for the FLEX filament I'm using?
Load a profile that's close to what you need, click the little disk Save button and give it a new name. You can then modify any parameters you like and continue to save it with the new name. It's basically like "Save As" in an editor.