I'm fixing some wiring mistakes in my house and installing some GE Z-Wave Plus switches at the same time. Where there were 3- and 4-way switches I'm using the GE Add-On switch to add additional control points.
Because the Dimmer switches have a nice blue LED to show when they are on/off, and the Add-On switches do NOT have this LED, I want to place the dimmers in certain locations, not always in the box where line enters or load leaves.
Are the following diagrams all 'legal' with respect to code and safety? The diagram on the bottom right is the one I'm most concerned with. Is it legal to have neutral enter the box from a different wiring path as line does, if they are on the same circuit?