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.
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.
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.
