Mh, yes, that’s one way of doing it. But i wanted to avoid to have single library files, since it clutters the workflow when you have to reload libs all the time. On the other hand … in the end i’m open to anything. But then we would need to grab the materials from the existing library, and put them into single files too. So that it is consistent.
I already had a look if we could implement a preview. Two things: we don’t maintain addons. And i was simply not able to manage it, sorry.
What we could do is to create a pdf with the previews 