How can I scroll efficiently horizontally Microsoft Paint? (Autohotkey maybe)

I just want to use Paint for a whiteboard style sketching on math problems etc. And I really need a way to navigate efficiently on the page.Maybe even like: hold space + move mouse, to grab the page like in Photoshop.

So is there some config file or hidden shortcut to scroll the page to the left/right? Or maybe there is an easy way in Autohotkey?

Thanks y'all!