OTM Ground schedule: Configure 7 days gap between 2 steps in the shipment appointments

Summary:

Through ground schedule we schedule shipments, after shipment creation we generate appointments on the shipment.
Our requirement is to get 7 days gap between 2 steps in the shipment appointments. as per the current ground schedule setup we are are able ti achieve only 6 days gap, As the ground schedule only covers a week.

Please let us know if we have any alternative approaches to fulfill the above requirement.

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