Gallery Module - Change Number of Columns

Hi there, I would love a way to choose how many columns show up in the gallery module. I like the appearance of the module but I only want 1 column of images and at minimum it allows 2.

Where are you setting it to 2 columns?

I’d like to have the choice added as a drop down option. Right now it auto chooses how many images show based on the size selected (small / med / large).