How to change the default action for when phone is plugged in to a computer? When I plugged in my phone to my computer for the first time it gave me a list of options to choose for what to do when it is plugged in. I tapped one of the choices and then mistakenly tapped "Always" instead of "Just Once." I want to choose a different action, but how do I reset it to give me the choices again?

(And yes, I tried going into Settings>Apps>Reset app preferences, but no luck.)

I am running Android 6.0.1, unrooted.
When plugged into computer: 


Pull down notification bar
Click on the USB connection notification
Choose either MTP (Recommend for daily use) or Camera mode


Done, you device will still charge, and now you are able to tansfer files between devices

Side Note: You are also able to use USB tethering(Under mobile hotspots settings) when connected to share your phone intenet data.