program Function Button

[desert-diva]

I have manually set my ISO to 500. I know want to set the Fn button so I can change the ISO quickly. So I go through the menus to get to f Controls and select to get Assign Fn button and all I get is Viewfinder grid display and Wi-Fi. How do I get the options to set the button?

 

[Bikerbrent_RIP]

See this link https://www.dummies.com/photography/cameras/nikon-camera/how-to-control-the-iso-on-your-nikon-d5300/

 

[desert-diva]

Thank you so much for the help. Maybe I need the Dummie book.