A shopping cart in the trading window.
- No more one-click buying: Clicking an item (or pressing 1–9) puts it in the cart, a second click takes it back out. Nothing is bought until you hit Pay (or Enter), and then everything at once. A misclick no longer costs ore.
- Cart display on the right, above your own ship: every item with its price and an ✕ to remove it, the total in ore and tokens, what you’ll have “on board afterwards”, plus Pay and Clear. After paying, a receipt appears there.
- Items in the cart are marked in amber in the offers. Anything you can no longer afford on top of the cart is grayed out (“not enough ore on top of the cart”).
- Slots already count in the cart: You can’t add more parts of one category than the ship has slots for. The new one replaces the oldest, with a notice.
- An unpaid cart expires when you undock.