Multiple open projects

[CZakarya]

This might be more of a requested feature, but I would like to be able to have multiple projects open at once (for example I want to be able to work on the client and server at the same time, when they are in different places on my computer). It would be a really nice feature to have, and it would make my experience with this editor much better.

Currently when you open a new project, it just replaces your current project with the new one. I would like it to work somewhat like tabs, where you can have many of them, opening and closing them at will.