I would like a new interactive selection mode - "Match Attribute of selected feature". Choose a feature class and an attribute. Each time you click on a feature, any features that match that attribute are also selected. One use case - features with unique serial numbers are added to a map. Through accidental duplication or data entry error, multiple features might have the same serial number - no easy way to prevent duplicates. When reviewing recently entered field data, I would like to set the selection mode to match the attribute (Serial number). Click on a recent point, and any matching point will also be selected, allowing easy comparison, correction, and elimination of duplicates in the table. To get the same result in the current version, I have to open the table's "Select by attributes", create the query, type the long serial number, apply the query - and repeat this process for each new feature.