I have 2 exterior lights on basic on/off switches. I’d like the second, back house light to come on when I manually turn on the front door light. Unsure how to go about this so any advice would be awesome.
You can do this with INSTANT STATUS Z-Wave switch and some automation (Scene Scripting or PLEG)
The INSTANT STATUS Z-Wave switches are important for your scenario. Not all Z-Wave switches support Instant Status.
Without instant status it can be a number of minutes before Vera would see that you changed the switch manually … so the other
switch would take a while.
With PLEG it’s pretty easy to setup a virtual 3-Way light setup … where you can turn on one light and the other goes on, and than turn of either and the remaining will also go off.
If your switches support association you can also use this. This would not rely on vera as the two switches would ‘talk’ to each other directly.