I wanted to ask for something on the players side. from options

I want their to be an option when you have certain things toggled or just clarification on some things that exist in the options . so in the options for hotkeys their exist something for targeting champions only is this something that is toggled or what? Is it for targeting champs with abilities powers lets say like gangplanks q instead of minions it focuses champs or is it for auto attacks like instead of going for minions and turrets it focuses on champs. Also the Player Attack Only Click when does someone use this. All i know is that its like right clicking or pushing the player attack move and left clicking. Lastly even though i did not number the things i listed i think it would be real cool if they did a video (like champion spotlights) for the options going over everything like toggling different combat text because i am fairly certain new summoners (dem noobs as i once was ) don't take the time to look at the options available and what the different things things they can benefit from.