Can Cadence control bike trainers in ERG mode?

When connected to an indoor trainer that supports Bluetooth FTMS, Cadence will show an ERG button to the right when recording a ride. Tapping the ERG button will allow you to set the wattage you want to ride at, and tapping the ERG mode will switch between ERG and resistance mode.

Separately, if you load a structured workout that uses power values, ERG mode can be set to Auto to automatically follow the workout.