What I would add is the possibility to deposit cargo from the shuttle craft into the cargo hold of the trident/any capship and vice versa. This way ownership of the goods is not lost, so trade xp can be generated for that items.

Drop and pick up technique erases ownership/price information, therefore no trade xp/profit is calculated from selling such items.

It's a shuttle not a cargo hauler. If you want to haul cargo, then use an existing ship.

+ 1, but please give it a low-speed turbo ability, just to make manoeuvring easier. Something low enough to still make it impractical for long-distance trips, but not entirely 0. Even just a turbo speed equal to the maximum normal speed could be handy if you want to nudge the ship forward without changing throttle.