From reading the docs, it looks like to exit the SmartRemote software I long press 'Home', so about one second. That is not working as doing that just reloads my index page. Could I have messed up something in Designer to stop that from working? Or what else can I try to exit the smartremote.
Well, you can make a long press do whatever you want it to do. You would inspect what it is currently programmed for using myDesigner. Open the current webpage (the home page is index.html) and see the button properties on what it is assigned.
But the three dots are what typically is assigned to go to the settings where Exit is located.