1. That's actually the original function of right-click. I removed it because I wanted to add the function to move the zoomed image in hscene but couldn't figure out a way to use right-click for both so yeah sacrifice had to be made...
2. It's possible. I'll think about it if I ever feel motivated to update this tool again.
Only love scenes atm.
As for the story... well, maybe I will try adding it when I feel motivated...
It's still working, there's no way nutaku can disable it. Probably just your browser updated and changed the shortcut key, try searching in your browser menu.