Power control

Thanks a lot for the wonderful software.
Would you think of implementing a control to set the desired power?
I only see power monitor but not an option to set.
(I would try in mean time and update you if I manage to do it myself )

Start by reviewing the existing power-monitor control in the Python GUI and the hardware-control entry points described by the project. Determine whether the Millennia device and its serial interface support setting a target power, then define completion as a working control that sends the setting and confirms the resulting behavior.

Written by the indexing model from the issue text.