Hi, The start and end dates of parent events are based on the dates of their children. You can move parent events on the timeline - this is why the start date is editable, but this would also move all the children events by the same amount. If you wish to move the parent's end date, you either have to move the children events, or if you wish the end date to be independent of the current children events, you can create a child event (eg. called "end of parent") which you would set at the end date you want. When an event is made a parent for the first time, an option appears that asks if you want to preserve the parent's range. If you click yes to this, then the program will automatically children events at the start and end of the parent - which you can then move to adjust the start and end times if you wish. You can read about parent and child events on our support page here: https://help.aeontimeline.com/article/62-nested-events Jess
Jess, Thank you for the detailed response and link. Very useful.