Is there a way to add material to the material library?

I “upgraded” from another manufacture and we had an extensive material library in LightBurn. I don't mind rebuilding it, but it seems overly complicated in the Xtool software. Do I really have to click save, give it a name and then delete the old one? Is there a way to edit an existing setting? Is there a more extensive material library similar to LightBurn? 

This seems like it would be feature #1, but it feels more like an afterthought that was ½ completed in the Xtool software.

Thanks,

Derek