New Sort Field needed

I often have meeting agendas and minutes that I post for organizations. Sometimes they allow me to name the documents with the Title of "2020-03-17 and 2020-02-24 and 2020-01-19, etc." which allows me to reverse sort by Document Title and have these ordered with the most recent first. However, sometimes, clients want to write out the name of the document as March 17, 2020, etc. This causes a sort problem for me/them. If we had a new (hidden) field called 'sort name' or something like that, I could use that field with the 2020-03-17 tag and then I could order by this field (if you would create it and add it to the sort options)...what do you think? Thanks, Tim