Where the list of models, categories etc can be undocked, it can't be moved to another screen.
It would greatly help navigation for the user, especially since most users work across two screens too.
It allows better viewing of the design model and clearer viewing of the information in the undocked dialogue box.
This is an issue which has been brought to me by the BIM leads, more than once. I'm trying to get as many users as possible onto the platform, so a simple issue like this, when fixed will make the user experience better for everyone.