As for the group tracks: they were there, but as I understand it the BWS guys were not satisfied with the old implementation and want to do better. So it was taken out several betas back for the time being, but will be back for sure.
Not in 1.0 though...
As for tags: they are fixed ATM, but for my personal taste very usable and well selected. You have an instrument type as well as a lot of descriptive tags:

MultiVSTOutput: Planned yes, Date no.
If you send me a UAD card I'm happy to give it a go
Cheers,
Tom