Teams in two windows or monitors

Great tool with luck of intuitive clarity. 

I would like to have my lecture PPT file in one window, my students in another and my notes in the third window so I can have better flexibility during my virtual lecture.

Or, at least, I should be able to use two monitors to split attached materials, lecture slides and participants questions etc.

How I can do it?

Currently if I am trying to upload additional material, I am loosing vision of my lecture materials and participants, and there is no clear way to get it back.