The HoRNet AutoGain has been designed with a specific purpose in mind: drastically shorten the time it takes to create volume automations.
When finishing a mix usually you have some tracks that need some volume adjustment here an there, so you start writing volume automation, but this is a long and boring task...
Here it comes the HoRNet AutoGain to the rescue.
It has two different inputs, in the main one put the track you want to automate, in the second one your volume reference, it may be a single track, a track group or the whole mix, press play and let the HoRNet AutoGain work its magic. It will try to keep your track level to the same of your reference, you can adjust speed, sensitivity and gain range.
Try it on a vocal track and when you are done put it into "write mode" to have the volume automation written for you! Have a look to the video example.