I think a tall (resizable) and narrow (1) box called a POLE
with an upward arrow in it , a bottom inlet and a top outlet
could avoid crossings with connections in loops (for instance).
It doesn' t change the style of the connections.
Suggestion to avoid some crossings
Intriguing idea. In that case [send] and [receive] normally do the trick. Nice idea all the same.
Use the Source.