how to create virtual group based on registry marks

Hi

So it seems that the imap server I use does not make dormant marks
permanent, so another approach would be, since
gnus-summary-limit-to-registry does not exist, to create a virtual group
based on registry entries.

Did anybody got this to work?


Uwe Brauer 
-- 
I strongly condemn Hamas heinous despicable pogroms/atrocities on Israel
I strongly condemn Putin's war of aggression against Ukraine.
I support to deliver weapons to Ukraine's military. 
I support the EU and NATO membership of Ukraine.