Originally from ticket #3239.
If I have a specific configuration of Mercury, Venus, and Earth can I determine what date or dates in history this configuration occurs (and also what dates in the future)?
Open the Events side pane. Expand the Event Filters layer. Check the box that says "Appulse Events" and the other that says "Planetary Events". Click on the words "Appulse Events" or "Planetary Events" to customize the search. Then enter the time spam for your search and then click the Find Events button.
We currently don't search for sky occultations between planets - we do between any planet and the Moon or M45. This is a feature we will add in the near future. In Pro and Pro Plus there is a manual way to find this information by using the Graph Tool. However this is not available in Enthusiast at this time.