Hi Howard, Currently you are unable to sync Duration between Aeon Timeline and Scrivener. The reason for this is because End Dates and Duration are related to one another and we didn't want to create a scenario where conflicts would arise based on incorrect changes to both values in the Scrivener file (where there is no check that the calculation is correct). So the decision was made to be only able to sync the end date. Jess
I'm surprised to hear this as this document https://www.aeontimeline.com/support/scrivener-syncing/ states: "It will be quite common to select ‘New Custom Field’ for timeline properties such as Start and End Dates or Duration, as most Scrivener projects will not have fields setup for these values in advance." This lead me to believe it could be done. You may wish to update your documentation. But thanks for your reply even if it isn't what I had hoped for.