This has been on our todo list a while but is pretty tricky. Currently the editor is designed to only load plugins on startup and never change them, so some rearchitecting would be necessary. On top of that it could become difficult to manage plugins - if you bundle a plugin with a project, then a new version comes out with a bug fix, you need to have a way to update the bundled plugin. I'm not sure we can do this in the short term, but it's still on our todo list.