I am new to Essential Grid, so forgive the dumb question; I can’t seem to find a way to add a large number of images (200) to the new Essential Grid that I created. What is the simplest way to achieve this? The source options seem limited. Portfolio makes the most sense, but I don’t see how to add a large number of images to my portfolio either; it looks like it want’s to add one at a time. What am I missing?