Why is it still so hard to add keywords?

I’m frustrated to see that Scrivener 3 still requires the user to click and drag in order to add keywords, or switch back and forth between keyboard and mouse.

Could we get

  1. a keyboard shortcut (and/or a menu item that we could access via a keyboard shortcut or other automation) to add a keyword?

  2. and/or even better a Finder tags-like interface to add keywords in the binder?