Place all the 4 way switches between the two 3 way switches. If you want to add a fourth fifth sixth or more switches to one of the above circuits all you need to do is add another 4 way switch connected the same way as the four way switch in the diagrams.

Two Way Light Switch Wiring Diagram
How to wire a 4 way switch with multiple lights. Look for 4 way switch wiring diagram or step how to wire a four way light switch electrical circuit a 4 way switch is a double pole double throw dpdt switch. If you want more than three locations to control the lights you will need a 4 way switch for each of those extra locations. Connect the hot wire from the source to the common terminal on the first 3 way and the hot wire from the lights to the common on the other 3 way. The easiest way to connect multiple lights to one switch is to daisy chain the lights which means to connect them together and attach just one of the lights to the switch. Here 3 wire cable runs between l1 and l2 2 wire cable runs from the last light to sw1 and more 3 wire cable runs from sw1 to the 4 way switch and then to sw2. A 4 way switch has 4 terminals or poles.
It has 4 terminals or poles and consists of two 3 way switches that are modified. Two terminalpoles are labeled in and two are labeled out pairs of wires called travelers will connect to each side. The switch can be used to control the electricity supplying lights from three locations. When the switch is operated current will either travel straight through or crisscross. Another 143 wire is used to connect another three way switch and finally a 142 wire is used to connect to the light or multiple light fixtures. At the lights the hot source is spliced to the black wire running between lights it does not connect to the lights.
Study the 4 way switch and the manufacturers directions. This is a scenario where you have 3 light switch locations that control a single light fixture unless. You can also do a home run configuration by feeding all the cables to the switch and connecting them with a pigtail.