You find most of the Game4automation functions under Tools > game4automation. Here you can add components or scripts to the scene:
If you select Tools > game4automation > Hierarchy Window > Show > Show Icons, you can display additional information in the hierarchy window. This will show you signals as well as script types, that are attached to different hierarchy levels.
With the last icon (the square) you can lock or unlock the selected objects in the hierarchy.
The eye icon allows you to hide or show the selected objects.