Astro-Kundali PRO (Both Lite as well as Professional) have this useful tool.
In the Transits Screen there is facility to go to the specific event date and time easily to assess the Transits Planetary Positions at the event time. If you have saved all the events in the data entry section then you can go to those event dates quickly.
Events need to be entered in the specific manner shown below
Event: Event Date and Time (Event Details)
Event: 16 Apr 1989 11:00:00 (Marriage)
Event: 14 Aug 1992 08:04:00 (1st Child Birth: Daughter)
Event: 31 Dec 1995 12:45:00 (2nd Child Birth: Son)