ADC Auto Attack Trick HELP PLS

Hi, I am deciding to main ADC and I was looking around on the internet for a ADC key binding trick. I found one made by cider helm called Attack move Click. I thought this would be cool to use, so I googled how to do it over and over and over and kept getting stuff irreverent to my needs. I was wondering if any of you ADC main out there know how to do this. Basically every time you left click your mouse just like moving around with the right click. When you left click your mouse it turns into attack champion only thing. This is really good for chasing people and just plane out attacking. Every time I tried changing stuff in my Imput.ini folder from websites with the same idea. I kept fkin up my in game settings and stuff. I could not ping, I could not click on shop stuff like that. If any of you know how to set my attack champion only to left click mouse button and ill still be able to click on the map, click on shop, ping, and click on players it would be GREATLY appreciated. Its what Hi Im gosu uses. Every time he left clicks its attack champion only so he can chase better. THANKS GUYS!!!!!!!!!!!!!!!!!!!!!!!!!!!!