I see that many of the metrics in the Facebook API aren't available in Supermetrics, the most important and notable one being "page_post_engagements" - as mentioned here: https://developers.facebook.com/docs/graph-api/reference/v2.10/insights
Am I missing something here?
you are correct, this metric seems to be missing from our connector. Our development team will add it in the next update. When it is available, we well update the info about it through email to our users.