Is it possible to have 2 scrivener windows at the same time?
I’ve tried renaming the executable to scrivener2, but it doesn’t launch.
You can’t have more than one window open for a given project, but you can certainly open as many distinct projects as you like at the same time. Just go to File->Open and select a pre-existing project (other than the one you already have open), or File->New project to start another.
If you need to do two on the same project, split screen. it’s the buttons on the top right of the editor. (You can choose vertical or horizontal and have two different documents open in both from the same project.)