Hi, thanks !
You need the autofeeder research to move things to inventory/bins/warehouse etc. It's a required research for transporting items, but it's fairly easy to get early.
Notice that the info tab is a presentation of the rover's fundamentals, but the DOCS have the full API specification.
That said, the rover is designed to be a more primitive vehicle. The pioneer is more granular on purpose. For .cargo on the rover you get count() and capacity() — there's no per-mineral readout because it's a single integrated bin, your script just tracks the id of what you are carrying. Pioneer uses racks that are way more versatile and intended for the first line of transportation in the game
Yeah the demo has an ending based on terraforming, but I feel like it has a good amount of content available and also one can go slow on the terraforming to test various things slowly. I just had to have some sort of an ending that makes sense :) The full game will be available in 2-3 months though so hopefully people can enjoy the rest of the game, it gets very deep later with outposts,drones,smelting, fabrication etc..