[RCU] Periodic Request #1 - Paid Job: Checkbox to list only folders with new, unread mail

People,

Every year or so I ask this Q but haven't had any responses . . trying yet again:

Currently I have 756 primary (Maildir) mail folders - very many of which have emails moved directly into them via a .mailfilter Maildrop file.
When new mail arrives in one of these folders, in RCM the folder name changes to a blue colour - which is very convenient (thank you RCM devs!) but in my case it would be EVEN MORE convenient if I didn't have to scroll down 756 lines looking for blue coloured folders . .

Is it possible to have a new checkbox which causes RCM, in Classic Mode, to only display the folders which have new, unread mail in them somehow? Is there someone who knows how to code this and to do the work as a paid job?

Thanks,

Phil.