Project opens but doesn't show scenes


It’s my first evening working with gdevelop, so likely this is something obvious that I’m missing.
My problem is that, when I try to open a project, it appears on the project manager window but it does not show any scene on the main window, just the start page. I searched the forum but didn’t find anything… any ideas?
I’m working on Ubuntu 16.04 .

Yesssss, it was something so obvious as double-clicking on the scene’s name!
Very sorry… :blush: