With my GE/Jasco devices, I can control when the ‘indicator light’ is lit. This doesn’t work for the Leviton dimmer’s I have in a few places where either high-loads or the buzzing of the GE dimmer drove me to spring for the good stuff…
Is this just a matter of the Leviton’s not supporting a command that is used to control the indicator light? Or is Leviton using their own command (hopefully, but doubtfully published) that could be used to control the indicator light with a custom device type?