Well, that is a main Windows mistake -compared to MAC. Even in Excel, you can't split 2 worksheets to 2 monitors. MindJet is not exception.
Philosophy of MAC is to have mainframe commands (file open, close, print....) in top tab, and only specific toolbars in worksheet frame. Therefore , it is easy to split any MAC application frame easy.
I would like to see same philosophy in Mind Manager for MAC - and all integrated applications.
Vojislav