By pressing any button, the automation setting line is automatically activated, important it is the track to be unfolded to see the automation

you can only set the view of the buttons already enabled for automation:

You can view multiple lines at the same time by pressing the + button:

Autofilter is a good filter to start automation

Each red button will appear on each automated button

An automation may be deactivated if, while the recording button is disabled, a modification of an automation element:
Initially it is so:

then it becomes so:

  • (external edit)