Visually show lines "just crossing"


While creating models, I sometimes get into the situation where I cannot prevent the lines connecting tasks / (sub-)processes to cross other lines.
It would be soo nice (for clarification to others) to a have a visual identification where lines cross (like some kind of “bridge”) or where lines actually connect (like some kind of “thick fat knot”).
I could use a “Gateway” in any of the latter situations where lines connect at tasks or (sub-)procresses but BPMN-wise that might not be the right thing to do, or am I wrong?

Is that possibible in any way?