Hi,
I can confirm, we have plans to add support for HD Trees 7 & 8 to our HQ Catalog add-on. There is no estimated date and it's hard to say, when the next update of this add-on will be published (we'll try to prioritize it & release it soon).
Meanwhile, let me mention, that any model inside of the 3ds Max scene can be used as a
Custom Object under the
Geometry tab. If you
Merge (or link as
XRef) any model from this package into your scene and then create Forest object, you can pick it as a
Custom Object.
Also, please feel free to create your own library(ies). I would suggest to check our "
Creating Libraries" tutorial covering this topic in detail.
Best regards,