A frequent request is that sessions have at least X number of papers. A less common request is for session chairs to only be allowed to add a maximum of N number of papers.  If we had a setting (similar to table fields, checkboxes, et al.) to set the minimum and maximum number of papers, it would be great. If we could do it by session type, and that would allow sessions without any papers at all to be finalized, that would be a dream come true.