Two-way patch cable viewing
It's great when I'm changing a parameter that the sources modulating that parameter flash. Helps me remember that, say, an LFO is in effect.
But I would love the ability to go the other way - what is LFO1 modulating? I can pull it out of the XML file, but that takes me out of the workflow. I'd love to have a way to see all of the destinations for any given modulation source. This is especially important when trying to understand a patch I didn't create!