Resize media_gallery images on import

When importing images I want to set rules for resizing the images I import as images_gallery. Just like I do the Small, Thumb and Swatch. Have seen this in a screenshot in your documentation. Something that you removed? See image linked below:

https://lh4.googleusercontent.com/VRRGlUpFX47U2Mxp-1r9cGfhcHqpHfpQlKn-56o8XfQevHc811tr28iQNF5FbHDywdfJEVoEA90HbUYsSRj0qnqitZ_i0uGIfxWunA9mbgCS_xr_-n5ubFrZ97oTXtnE_Q=w1280

Best regards
Jonatan Samuelsson