Change default tab behaviour

Hi all.

I've joined almost all sessions in tabbed groups, i.e. "Site1", "Site2", etc, so when I want to focus on the work on one site, I click on that group tab and I only have visible its opened sessions. That's perfect for me.
But if I close one session, RDM defaults to "All" tabbed group even when there are remaining sessions opened in the same tabbed group.
Also, if I open another session of the same tabbed group, RDM first show all sessions and then focus on its tabbed group.

This behaviour, when I have 3-4 tabbed groups and 4-6 sessions opened in each, is a bit annoying and can take some seconds to "stabilize".
How can I modify it?

Thanks in advance.
Regards.
Hector Garcia