Add a report filter that shows all the issues that you have more than one copy of.
Maybe add this to the many other report filter ideas that CBR members are suggesting. This could be helpful in managing your collection, trading and selling.
This report has been added. Thank you for your suggestion. You can find it with all of the other reports here: https://comicbookrealm.com/reports
A report to be able to pull that will display everything you have more than one of. Can be helpful in accidental double ads as well as cleansing out your books when you want to sell.