I am trying to remove an element from a copy of a master page. Basically, I inserted 18 pages into our document, and only on the first of those pages can I go into the layers, select the rectangle (shown in the photo as the smaller square or inset on the larger square) and delete it. However, when I try to do that to the others, it's not selectable and it doesn't show up in the layers. The photo shows what I am trying to remove.
Note: I do not want to change the master page — I just want to take this one item off of the duplicate pages I have created.
Override this item, use the selection tool and hold down cmd/ctrl + shift key when selecting this object.