Really its just the typical useful fuctions such as, when your health is low, it displays a message such as "Heal Me, Health: 23%" automaticlly when your health reaches a certain level.
"Heal Me, Health: *HealthPercentage*" (Automatic Message)
"Pulling *MobName* *lvl* *type(elite/normal)*" (Based on G15 Keyboard Button)
"Entity *MobName* *lvl* *type(elite/normal) took *xAmount of Time* to Die" (Automatic when mob dies)
Just a few examples, but i hope you get the idea