I think it would be great to be able to select several item at once from the inventory. At least from the following locations:
- The electronic/public market
- Shipping bay
That way we would be able to sell/drop/store/send several item at once.
As for the implementation, it could be a checkbox, like the shipping bay notifications. Or a long click. And I suppose that stacked items (e.g. 5 bottles or 3 rations) would all be selected at once.