Each station has to be added as a separate plan and then re-created each time. It would be preferable to be able to upload them all in one go and to manage them within a dashboard.
Updated to will not implement as unlikely to be in the next couple of years - it's a sensible suggestion but an upload functionality is not something we will be able to focus on. we can upload polling stations for people as a development activity if required.
Polling Stations, if unlikely to be different each time, could be data added to the NSG as a fixed entry.