This is what many of us found when starting with the RootsIV - UFT series. From RootsIII we had one text file that went into the Ind text box. So we put the text into the event text box to keep it with the event.
In the "Custom" setup you can change from the system that puts BMDB first then the other event at the end of the subject. The other is a date order, but if you don't have a date it would go to the start or end I'm not sure.