Hello, I'm very new to Qt. I'm trying to replicate the functionality of a mockup of mine for a tool i'm developing. This would call for dockwidgets and toolbars to be inside a tabwidget. From what i've read, the only widget that can hold dockables and toolbars is the main-window and some have suggested to somehow make the mainwindow a child of another widget (in my case, a tabwidget). But the answers were never well defined for someone new to qt. Could someone please give a detailed solution to this?

I currently have a .UI form designed with a tabwidget. Would it be possible to design another .UI document that contained another mainwindow to be inserted into these tabs from my first .ui file?

here is my mockup for reference:
http://danfessler.com/dump/mock_modanim.png