So i was trying to be a good little administrator for my settlements and I put a nice ring of supply lines around to the ones I had found. Things were going great, but then I got a new settlement and wanted to add it into my supply line chain. However, I couldn't figure out how to do that. I tried to find the one that was making the return to Sanctuary hills from the last one I set up to connect it to the new settlement and then that new settlement back to Sanctuary hills, but the problem is, the next provisioner I found was from somewhere else and when I tried to change it, it broke my supply lines. I managed to fix that one and then them back to their original route, but I can't find the provisioner I need. I can't find any sort of interface for easily setting up supply lines. It would be -great- if you could order it via the pipboy and set out the list and have ti just take a free settler from each one to handle the supply lines.
So now I'm just at a loss. How do I remove supply lines? Is there any way? Is there any way to find specific provisioners from one settlement to another? I've spent most of the evening trying to find the provisioner I need, but whenever I find one it's someone from another settlement and I mess it up. I've got provisioners crossing all sorts of ways now because after I tried fixing my primary issue and realized I made it worse, they left the area from which I could change their routes, leaving me further behind. I'm wasting NPC's and am frustrated.