shrinking a container field

[stage_management]

I am creating an inventory list. There is a list of objects, their storage location and a notes section - all in a single horizontal line. I added a container field beneath the notes section so that I can insert a photo of certain items. Is there a way to make a container field recognize when it's empty so that it will slide up? This is my first time working with container fields, is there something special I have to do, or do they just not slide in general?

[stage_management]

Nevermind - after a few more hours of work I figured out that the graphic had to be set to reduce and to align to the left and the top.