Show a legend of your groups in the Who's Online and Recently Browsing widgets, sorted in the order you specify and linked to the search system. Handy so that people know what those group prefixes and suffixes mean.
You choose which groups appear in the legend, and the order they will appear in, with the plugin settings in the ACP. Group links will carry any group formatting (colors, etc.) you may have set. Clicking the entries in the legend takes users to a list of all members with that group designation.
Version 6 is for Invision Community 4.5 and above. Tweaks the &q appendage slightly - this is tested but environments vary, give a yell if there are problems.
Version 5 is for IPS 4.4.5 and above. Untested on earlier versions. Version 5 addresses changes within the IPS search subsystem that now REQUIRES a query parameter to be passed through. GNI urls now append a "&q= " - and yes, the space after equals sign is intentional and necessary. If you edit the plugin template files, do keep this in mind.