I would like to check the box with editorial content, but I can't. The box stays gray so I can't check it. Can anyone help me how to solve this?
That's correct. Adobe accepts editorial content from trusted partners and news agencies only. Individual contributors cannot submit for Editorial Use Only, sorry.
Illustrative Editorial content is limited to Contributors with a rank of Bronze and 100 or more downloads. See link below for details on what constitutes Illustrative Editorial content.