Using multiple button roots on a Sitecore edit frame

Edit frames are a well-known part of the Sitecore page editor: they allow developers to show buttons around arbitrary parts of the page.  Edit frames will take a single button root and then display all the buttons in that folder on a toolbar.  From someone who uses edit frames quite a bit, I always used to find it quite annoying that I would have to duplicate buttons if I wanted to have the same button on different edit frame toolbars.  After a bit of digging, I found a way to extend edit frames that would allow me to specify multiple button roots on each toolbar, allowing me to reuse groups of buttons. Continue reading Using multiple button roots on a Sitecore edit frame