The birds eye view of a wire run doesn't account for running up and down the wall, or running from one floor to another. To accommodate this, there is a new input where you can type in a number to add to the calculated wire length.
Click on a wire to make it active, and enter a number into the "Wire Slack" number box. Press the "Set" button to save the new value. If you have split a wire into multiple wires, choose the wire with the length label and add slack to it.
With this new menu item, the wire menu started getting a bit crowded. Some of the other menu items have been moved to a Wire Menu to the right:
This menu houses the "Split Wire", "Straighten", and the "Remove Wire" functions.
The tutorial videos have not been modified yet with this new layout but will soon. We continue to add features so please keep the requests coming!