Any chance of a rethink of the tab metaphor in Command? Firefox has an extension that might be a useful reference point:

“Tree style tabs on the side of my window absolutely changed my computing life. I stopped seeing tabs as a collection of what Im doing and instead started using them + the browsers inclination to save my tabs across restarts to track everything.

Ill have a tree of tabs for blogs im reading, a tree for work stuff, a tree for amazon orders, etc. All that context can be closed in a single click. Ill have hundreds of tabs open (but asleep!) and just pick the tree im interested in.

Dont need to save bookmarks or save articles for later - they are all there always.”