This plugin is the best group tag plugin. It has so many features that it takes days to try them all. The handling is super simple and very clearly documented. The support for this free plugin is gigantic and very friendly.
I was looking for something like your plugin for a long time, thanks! If you continue adding options for presentation of tag (with shortcodes), then it’s gonna be 6 stars. 😉
I am using the plugin for more than a year with no issues. The plugin is free. This should have been a WordPress build-in feature.