Connect: After pressing “Connect” button, click a node and another node.
Remove Edge: After pressing “Remove Edge” button, click an edge.
add Empty Layer: add new layer.
☒: delete the layer by clicking.
□: switch the layer visibility.
Speed: Setting the weight of edges on this layer. The weight should be set by “distance per hour”. The weight will be the ratio against the setting of “walk distance per hour” which set on the “Shortest Paths” panel.
up load: Setting the load of edge for upward direction.
down load： Setting the load of edge for downward direction.