Anyone wanting to do something like you describe in the menubar should check out Hammerspoon. Brilliant stuff.
For people who don't know, it is a service you run on a Mac that has all of Cocoa bound to Lua. You can script aaaaaaanything on your Mac in Lua. Don't like the way Mac does window management? Treat yoself! Want to control anything at all on your Mac with just keystrokes instead of endless pointy clicky? Treat yoself!