Mintt‑Instafeed Instagram Feed

To include the feed on the main homepage was easy, but for me it is difficult to find out how to add some images to the product pages. I only downloaded the app because this feature was advertised. I don´t understand why they don´t upload a video on youtube explaining this. I wrote the support team an email 5 days ago and still haven´t received any answer. This feature might work, but I can´t continue to work because of the lack of service.