Controlling multiple beds will be a little more complicated. Typically heater 0 is the bed and heater 1+ is for an extruder and maybe a chamber heater. The slicers are only able to control the bed and extruder temp usually. So you'd have to control the second bed heater more manually. Perhaps treating it as a chamber heater, which some slicers can control.
I don't know what your printer is like or how it's used though, so I can't really give any specific recommendations.