Testing node-based pathing in GM.
Scroll wheel or E, N, and P to change modes.
Modes:
Edge - Left click and drag from one node to the next to create edge. Do the same with right click to delete edge.
Node - Left click to add node. Right click to delete.
Path - Left click and drag from one node to the next to calculate a path between them. Right click to clear.
Press L to find longest path.