When you navigate a route the only gemming option is to finish the whole route. I'd like to be able to gem through individual tiles of the navigation. For example. If I was battling the witchy squid but still had some navigation to do after the battle. I could gem to finish the battle and let my ship move on. Sometimes the path we use to navigate only goes into 1 or 2 tiles of the deepest water. It would be awesome to gem through those tiles once the ship got to them. This would only work on gemming through tiles the ship is currently exploring.