The SobiPro Aggregation Field allows Users to add tags to an entry that will create a hyper-linked keyword in the front-end output that site visitors can click to view all related entries that have been tagged with the same keyword. You have the ability to set default tags when you create each custom field, limit the number of tags Users can add when creating or editing an Entry, as well as filtering what can be added to the tags field using the SobiPro Input Filters.