It's currently not possible to add any rules or order value settings to the DPD Ship to Shop service.
This is a significant gap in functionality. You can block the service all together at Cloud MT Item level but that doesn't cover situations where the combined size or weight is too great for the service, the value is too high to consider shipping to a shop etc.
Standard liability for DPD parcels is £100 if lost. You can't choose to add liability as the DPD ship to shop function is locked to only be able to produce a label through POS. So no manual label.
The service should be set up and available on the ship.citruslime Courier solution like other ones to allow retailers to manage and configure as they require for their business needs.