Thank you so much for this. This is huge for people that don't want to pay for PoseCamera. Q/E should have always been a camera rotate function like every other game.
Oh my, I didn't even know about this plugin — probably because I've never looked at the paid plugins page. I prefer targeted requirements and lightweight development, though. This plugin still has room for improvement, such as adding a "next shot" feature to make it easier for users to flip pages. It's a pity this idea didn't occur to me during development.