Yes, it support, just connect the base station to the laptop by ethernet cable.
Yes, there are 4 levels of the brightness. and there are two ways to change it, one is double click the power button of the tally light change it one by one, another is change all of them by base station.
The tally system is compatible with ATEM SDI Extreme ISO, please trying to reset the output settings of the switcher from “settings”->”Labels”->”Output” by ATEM Software Control.
