BW> What is a global group? I do have one message area whose List ACS is
 BW> "any of the Echomail Groups", but that's about it. =)
 BW> 
 BW> Anyway, I was standing in FSX_ADS and launching the N G scan:
 BW> 
 BW> Û Read ACS    ³                                   New Scan     ³ No     

So it looks like in this case you don't have READ access for that base assigned to any group, which means it will show up in every group when performaing a read function.

If you want to restict reading the base to only group 2 for example you'd set Read ACS to "g2".  So you'd probably want something like:

 List ACS: g2
 Read ACS: g2
 Post ACS: g2
Sysop ACS: s255g2

This way you can only see, read, post, or perform SysOp stuff on that message base when you are in group 2.  Generally speaking you want to put the group into all of the access strings as shown above.

Hope that makes sense.

... As I said before, I never repeat myself

--- Mystic BBS v1.12 A47 2021/07/23 (Windows/64)