How to filter all events with precise dates?

Actually, it was a good push. I’ve been procrastinating about learning SuperTool’s filter feature. (There so many other possibilities!) Now I have fodder for writing a tutorial.

Including taking the scripts to the next level: converting the scripts to Rule addons that are totally independent of SuperTool. Trying now to figure how to change the GUI so it can go from 5 rules to a single rule with options.