This option is only available for Web Apps. If you have a mobile application, then you need to create an Ordering App.
1.- This shows you the name of your app.
2.- This shows you the theme that your website has.
3.- This is the version of the current demo.
4.- This is de URL where your demo is uploaded, to open it just click the link, otherwise copy and paste it in a web browser.
5.- Click to update the demo if made some changes to the app. If never before created a demo, the button will say "Build."
REMEMBER TO VIEW THE CHANGES DELETE ALL THE CACHE FROM YOUR BROWSER OR OPEN IT IN AN INCOGNITO WINDOW
This video-tutorial that will help you better understand this topic
Glad we can help!
Have a nice Ordering