How do I have multiple windows?

Im thinking of creating an application with C3 but I was wondering if its possible to have multiple html windows which can perhaps be undocked from the app itself, much like the Construct 3 editor.

I saw 'Golden Layout' which looks interesting but I don't know if a construct canvas could be put inside one of these elements and still have other panels communicate with c3.

Anyone have any experience with this kind of stuff? Recommended best practices?

Yes you can.

In this golden layout, and in construct you cannot have multiple html windows that you can freely undock. They are inside main window and you cannot move them outside of this main window. So its only one html window but you see boxes inside this main window, and this is easly done in construct 3.

You can create your app and open new page or app in it. We call it "browser bombing", or "pop-up loop attack", and we dont like it. So better dont do this. Just use one window.

If you run multiple constract app on single pc, they can comunicate with each other. You can use multiplayer plugin, you can use remonte database, on local files to do this.