Menu Position MENU --> 
6 --> S. Auto Image Extraction
What it Does Works in conjunction “Superior Auto” mode. Tells the camera to keep only the good one if the camera decided to shoot multiple images
Recommended Setting Auto
Constraints Superior Auto mode only
When the exposure mode dial is set to AUTO, and MENU --> 
7 --> Auto Mode is set to Superior Auto, and the camera decides to shoot continuously, you can tell the camera whether to save all of the shots it takes (OFF) or save only what it thinks is the best / sharpest one (AUTO). Useful for saving time and not filling up your memory card.
This function has no effect if Superior Auto mode chooses Auto HDR, Anti-Motion Blur, or Handheld Twilight multi-shot modes, or if Intelligent Auto mode is selected. (Got all that?)
Menu Position MENU --> 6 --> Exp.comp.set
What it Does Specifies whether the Exposure Compensation function affects the flash exposure as well
Recommended Setting Ambient Only
The A6300 offers two different kinds of exposure compensation: the first one is the Exposure Compensation function, which I have assigned to the top control dial because it's very useful and convenient. The Exposure Compensation function adjusts how much ambient light hits the sensor, and you can use it to make your image lighter or darker.
The second, Flash Compensation (Section 6.12), adjusts how much light is generated from the flash, be it the pop-up, an accessory flash, or off-camera flash via wireless mode. These are two completely different kinds of exposures, and that’s why the camera allows you to control both independently.
But… what if you wanted to control both at once? Then you would set Exposure Compensation Set to Ambient&Flash, and from that time on changing the exposure compensation would control both the ambient light and amount of flash.
There has never been a time in my professional career when I had wanted to adjust both at once… In fact, often I set the flash to -1 so it looks more natural when I’m using the flash as a fill. That’s why I recommend setting this parameter to “Ambient Only”.