In the Durations and Rates tab you will see 2 Sections;
Durations, includes create-button and a list of the durations on the Time Charter Contract.
Duration and Rates, includes a list of the Rates along with the connected Duration on the Time Charter Contract.
When adding, removing or otherwise changing the durations on a Time Charter Out, and the Voyage has status Estimate, the redelivery date on the contract is automatically updated.
When creating a Duration you can enter Duration information in the fields and at the bottom you can see the current Rates on the Duration.
Create requirements: At least one Rate added.
Create requirements: Tc Rate Duration
After creating a Duration or a Rate you can click on the row in their respective lists to open their edit modals.
In the Durations Section you create new durations by clicking the -icon in the top right of the Section and click on any of the durations to edit or delete them.
If you want to add Rates to the Duration you can click the -icon in the upper right of the Rates Section to create a Rate on the Duration. This will open up a new Create Rate modal.