Re use the red wire as my travelercommunication wire. Splice two more short line wires into each of the switches in the 3 gang box.
Install Smart Switch Neutral Wire From Adjacent Switch
How to install a neutral wire. The rewired configuration gains a neutral wire that enables you to use the new switch to control lighting. Turn your breaker box off. Re purposed the whitebeige wire previously line into a neutral by connecting it to the neutral bundle this wire goes to the single gang box. Option 1 run a neutral wire if you want to use smart switches and dont have a neutral wire in your switch box you can hire an electrician to run a neutral wire between the light. If any of this seems foreign or uncomfortable to you. To install your neutral wire in your switch youll need to remove the wall plate by removing the screws that hold it in place.
Remove the trim plate covering the switch. A white wire or group of white wires mean theres a strong chance the box contains neutrals. Pull out the existing switch so you can examine the wires. Work with electric at your own risk. Then pull the switch out of the electrical box. Take out the screws from the switch.
A smart switch can simply tie into the white neutral wires to complete the circuit and get a source of power to keep the radios in the switch working at all times. You will find 3 wires a black hot a copper bare and a white which is your neutral wire. At this point you need to make sure the wire is neutral.