When you create the this additional SSID, it will be added into the default-group, and there is no way to remove any SSID from this default-group.
Based on this, I think, what it's needed is to create a new group, move "all" APs to this group, create the new SSID, and then only move the APs placed in the 10 sites back to the default-group. This way, APs in the new group carry exisitng SSIDs, and APs in default-group will carry the existing SSIDs and the newly-added SSIDs.
Transferring Crash file from standby: Login to the Active WLC in HA.
From CLI: (Cisco Controller) >transfer upload datatype crash (Cisco
Controller) >transfer upload filename (Cisco
Controller) >transfer upload mode tftp (Cisco Controller) >transfer
This is the start of a display filter cross reference between Wireshark
and OmniPeek. The 1st installment is a table of advanced filters. More
filters will be added as time allows. It is a living doc, so check back
for changes every so often Please feel f...