I have installed a bunch of tapo dimmers and 3 way dimmer kits. I have a few lighting circuits that have a single dimmer (traditional) and 2 additional switches (on/off) in the same great room. The 3-

Had two 3 way switches in my kitchen that I removed. 1 has the hot from the panel coming into it and sending (through old traveler wire) a hot to the second. The load side of the 1st switch goes to th