in user manual in section "How to link sites together" is written: "...Click on the "Save" button. If site2.com has been added successfully, you can either repeat the procedure on site2.com (and add site1.com there) or simply click the "Sync" button and it will be done automatically."
But where is "Sync" button in TE3? I know, that "Sync" button was in previous version, but in new one I see it nowhere.