Locations (both pickup and drop-off)
Pickup Location and Drop-off location are taxonomies of inventory post type. You can find this here Dashboard->Inventory->Pickup Location and Dashboard->Inventory->Dropoff Location. You can add unlimited pickup and drop-off locations from here. You can also add pickup cost and drop-off cost also.
FYI : The name input field value will show in drop-down in product single page and description text-area field value will show in cart, checkout , order and email page.
Pickup locations :
Drop-off locations :