Enscape´s Material Library / is adding custom material cathegories possible?

Hi All - I have not yet fully understood the principle here
Is it possible to add custom material cathegories within this Enscape material library in order to fill these cathegories with custom materials like faked in the screenshot below
Such an option would be much better than importing single or multiple materials per project file only...

hi again - much more than running people or waving palms this is really very important for me and "my" company -
to get Enscape more in the direction of professional workflows (preconfigured instead of endless individually and project by project manual work) on the one hand and to provide own material libraries for colleagues and external users in a comfortable way on the other hand - is there any movement in this direction meanwhile?

... and if you deal with this task properly, you should touch the Tint Color function as well - for example with the supplement of the import option of software common and industry-standard color palettes ...