Watch Face not detected by App Settings Editor

Hi,

I am trying to add settings to a watch face that I developed initially without them. Could anyone please point me in the right direction here. I have compared my code, which was generated from the watch face sans settings wizard, that that generated with settings, and have added bit and pieces of code that I thought the App Settings Editor might be looking for. No luck so far, it just doesn't show my WF as an option in the drop down list. Any suggestions?