As the title says, inner-ship remote labels are not visible in the hotbars 2-9, they're only visible in the first flight mode hotbar. This makes identifying what button does what in flight pretty impossible unless it's placed on the first hotbar (or you remember the position and function).

How to reproduce:

1. Place an inner-ship remote on a ship and give it X label.
2. Place it in the hotbars 2 to 9 in the ship's weapon tab.
3. Get in flight mode, scroll to the inner ship remote and notice that the label doesn't appear.