You can even copy/paste events from one window to another, assuming the same variables, objects, etc being referenced exist in both projects. Its super handy for restoring a broken mess from experimenting with your old working version.
As a super helpful tip, i ALWAYS (now) change the theme of the 'temporary' or 'reference' project to something dark / drastically different to my main 'WORKING' code... especially in the case of referencing between 2 versions of the same code, you dont want to get mixed up and start adding new features to your old version. Having a visual theme is the easiest way to identify which one is which since all the other stuff is almost identical. I learned this the hard way.