Holding down the the Alt key while modifying or drawing connectors gives you full control of positioning vertices of a connector and also allows you to modify or draw the connectors diagonally.
Click the Power symbol while pressing and holding the Ctrl key; click twice on the drawing sheet to the left side of the rack to place two power cables. Right mouse click to reset the command.
When you connect to key points, there are no tooltips displayed.
One end point of each Cat-5 cable is connected to the patch panel, and the other end point is connected to the top mid-point (key point) of the wallplates.
Press and hold the Alt key while you modify the cables.
When you connect to key points, there are no tooltips displayed.