[DanielDe]

Ah you can actually dismiss the onboarding panel from the command palette, sorry that wasn't more obvious!

The sidebars can be collapsed with ⌘+; and ⌘+', though we also intend to make them fully resizable soon too!

You're right about the undo/redo stack, we need to improve its integration with the system so those work properly.

Thanks so much for this feedback! Keep it coming!