Will a single GE Smart Dimmer work in a 3-way config with dumb switches?

[JDRoberts]

Smart switches are wired somewhat differently than dumb switches. For this reason you need to replace all of the switches in a three-way set up, which is what you are describing, or things won’t work properly. The auxiliaries need to be specifically designed to work with the master. Meaning switch 2 has to be a brand and model specifically designed to work with switch 1.

FAQ: Zwave Switches 101 for Noobie (What's an Add-on Switch for and Do You Have to Replace All the Switches in a 3-Way?)

Brand new to Smartthings and trying to get some areas of the house “connected” ASAP. Most of the devices available are intuitive enough to figure out, but one area that seems to be a bit confusing is the on/off light/scene/etc. switchs that are available. I am mainly confused with the 3/4-way options, the add on switches and how these inter-operate with existing switches (if at all). My initial understanding is that I can replace a single pole switch with something like the GE Z-Wave Wireless Lighting Control On/Off Switch, if I want it to be able to dim the lights I need one that supporting dimming. If I have a 3/4 way lighting setup I need to get a zwave/wireless switch that is capable of supporting 3/4 way. However does this mean I can just replace one of the existing switches with…