Social Media Image

Loved the plugin and would like to upgrade, however, there’s one thing that the free plugin cannot do. Before, anytime I shared the post on social media, it would take the image within the post. However, now with the plugin, I have to manually add the image in the “MashShare Social Sharing Options” section of the post. Since I have over 1K posts and cannot go back and manually do this on previous posts, on twitter it is showing no image and on facebook it’s showing the slider image instead of the image within the post. Is there a way to disable the “Social Media Image” section of the plugin so it can by default take whatever image is in the post? Thanks!