What you are asking for is already there. If you go to EDIT of the person you will see EVENTS LIST or CUSTOM if you look at the LIST and what you want is not there, go to CUSTOM and CLICK on the RADIO BUTTON to select . You now can add what you wish for example Married then add EVENT and you will now see that you can select a small Note Box as per BMD
Would have explained this earlier, but I musy have misread you original.
Tegards
Les
All the best
Les