Well the cubase filtering is extensive. You can make your own fields. There are literally dozens of values you can associate with each preset if you want. But, the editing is so wonky that I can’t see how anyone would have the patience and time to do all the work required to make the meta data functional. Also, I’ve seen numerous occasions where people have put 100s of hours into labeling their library, only to lose it during an upgrade. There’s probably ways to avoid that, but it isn’t user friendly. So, in general I’d say you aren’t missing anything. But, thought I’d point out that the tagging system in that browser is extremely extensive. I just showed you a miniscule portion of it.