Resizing the Canvas OpenToonz Bug and Solution
If you want to have a camera move over your layout but realize you made your drawings canvas too small, you just go to level - canvas size - except it doesn't actually work because this menu option will be greyed out! The trick is to hover OVER the xsheet and click your up and down arrows a couple times so the level is selected but not actually currently clicked on. Then the canvas size menu option reappears! Buggy, but at least there's an easy workaround...