Thank you so much for this. I totally follow.
I agree that your option 3 seems to be the way to go. I like that idea very much. Thank you!
I’ll put it on our todo-list to be done soon.
In the meantime, you could use H (Hand) as the shortcut for dragging the canvas. This works all over the view. Though I do understand the muscle memory thing using the Space bar. 🙂 So we’ll get it updated!