Compact Toolbar- Improve Configurability

I would like to have the same flexibility in adding my own buttons and flyouts to the Compact Toolbar as I currently do with the Tabbed Toolbar in GVH.

I know it was intended for phones, but I'm finding that some of my users really like the Compact Toolbar for larger form factors because they can maximize their map viewing area.  Why can you only add predefined tools from Manager?  I am able to modify the JSON, but it's time consuming and is subject to being overwritten.

Thanks for considering!

Dave