3
No there is no group permission available. Here is what I see...
Blocks Administration
Show blocks visible in (Top Page) Group (Anonymous Users) Visible (No-Yes-All) [GO]
... only blocks available are system blocks for anon.
The module blocks don't even show here. The only place other blocks show is webmaster and registered. When the new block is available, I click edit and there is still no group permissions there. Only top, all, news, forum...
By the way, damn you're quick to reply.