I've created a list of frequent rag chewing partners in Special Callsigns, using the term RCC in the Taglist field.
I would like to have one of my SC filter buttons only show those special callsigns, just as if I had typed RCC in the Filter box and clicked the Tag button.
I've tried various combinations of
Tags/Tag =/like/in 'RCC'/<'RCC'>/('RCC')
and get nothing, not even an error message. What's the proper incantation to invoke, oh wizards?