When it comes to 3-way. I’ve looked at all the wiring diagrams. There doesn’t seem to be a scenario for a 3-way setup where 1 switch has a neutral and 1 switch does not.
Most of the conversations here I see here are for situations where neither have neutrals.
I’m open to using either a dumb or a GE add on switch for it to work. but is it possible in this scenario?
Scroll to the bottom of the page and you’ll see a setup for two dimmers in the setup. Note: the LED will not sync between one another. So if you use one switch to turn down, the other switch may indicate all the way up. YMMV
That is a common 3-way configuration. It would be unusual for there to be a neutral in both 3-way boxes. The only thing is the Inovelli should be placed in the box that has the neutral.
That’s only because non-neutral in both boxes can be confusing. There are plenty of people that have installed 3-ways with a neutral in one box. Inovelli publishes wiring diagrams for those as well.
As @JohnRob said, give us some details and we’ll get you going.