Currently, the caption showing the port name can be placed only at specific positions and specific distances around the port name.
Wishlist:
1) Allow more positions (for instance straight to the left/right) relative to the port
2) Allow changing to distance from the port. Or alternatively make the fixed positions closer to the port.
...
2) is most wanted, because currently and specially with some fixed positions the caption is much too far from the port which makes it difficult to see to which port the caption belongs to.