Ok I got it. I have to change it under “Selected input(s)” box below. I need to change “Enable texturing and coloring” to change all images in my selection.
I seem to have banding in my texture output. It looks like a lot of little strips put together. Maybe its because the lighting is not consistent in my photos. But I never had this problem with Photoscan. It looks like here the images are merging too many times to create the texture. Is there a way to change the settings so the texture does not take so many little strips from the images, but takes larger areas instead?