No 'Sync' option in the File tab


i wanted to sync to Simplenotes that I can work on my chapter while out and about. My File tab is not the same as shown in your Simplenotes video tutorial. I only have the Import and export options, not Sync.

I have updated and am on version 1.9. What is the issue please?

I believe that is currently available only in the Mac (OS X) version of Scrivener.