I'd like to be able to create a sheet summary report for all of the sheets in a workspace, showing their last modified dates. This is to help me gauge when a workspace is no longer needed or to keep an eye on updates at a high level without going into multiple sheets.
My idea was to add "modified date" into the sheet summary for each sheet, but the field is not available to add. Is there any way to do this more elegantly than adding a new column to the sheets, hiding it, and referencing that from the sheet summary?
