Unique entries per user

Hi. I have paid version of WPForms, which has an add-on called Form Locker, which prevents duplicate entries site wide. What they don’t offer, which I need, is the ability to prevent duplicates at the user level, not global. So multiple users can submit the same entry, but a single user cannot submit an entry they have already submitted before. Does your plugin offer this? If not, I’d be interested in paying for custom work to implement this.