Hey,
I've just hacked together a new extension: [https://github.com/xsrf/easyeda-toggleview](https://github.com/xsrf/easyeda-toggleview)
Rather having a menu item for it, I'd like to have an additional button in the PCB Tools Toolbar.
I think this was possible when I first looked into the API few years ago but it doesn't seem to work anymore.
Of course I can add an icon "by hand" with the full dom manipulation, but I'd rather do it via an official API.
Is there a way to do this?
Brand new interactions and interfaces. 
Easy to use and quick to get started. 
