I had an electrician install the KS230 Kit to control the lights in my kitchen and they work perfectly. However, I have a 3rd switch that right now is a regular switch and has to remain on to keep the power on for the dimmers. I'd like to replace that one with a Kasa dimmer switch so that there are three dimmers for the kitchen. 

The question is, is that possible and which switch do I get?

It's wired like this:

KS230 Main > Regular on/off switch > KS230 Satellite

Thanks in advance!