Ha ha! Besides us "serious gamers" (MeganS & I) there really is no need to use those keys outside of a company's proprietary software.
But now you have my goofy representation of the online game your boyfriend, hubby, or son is playing all through the night.
Feel free to use this knowledge to distract them after their character has been killed.
"Oh! You poor thing! Couldn't anyone in your group pull off a heal quick enough?"
LOL! That should earn you a look of bewilderment.
How does she know about that? She never shows an interest in my game.