Thank you Gentlemen!
I'll be honored!
There's more things to come with this extension, so I'm sure there will be something to discuss.
I spent my weekend polishing separate Items view in the sidebar. You'll be able to see a tree view of your grouped items, find references to them in the code, copy name and more
Oh, and it utilizes REST API!
I hope I'll be able to deliver working 0.1.0 next week.