The images below illustrate some enhancements I think could provide some clarity and eliminate any confusion, as well as help streamline the button order for editing materials.
Simply removing "size" from the buttons for the sheet properties helps reduce confusion - "Am I only able to adjust sheet sizes? How do I adjust trims, and sheet price?" These questions have come up during trainings.
And, when adding/editing a sheet, it would be great to include the changes in the image below.