Category is a way for the Monitoring Agents to partition Resources in Monitor Views. Use this feature to create Monitor Views with Custom Filters based on the Category name; For example BizTalk Send Ports.
The Category names are automatically populated from Resources during the sync operation of the Monitoring Service. The Resources comes from the Monitoring Agents. The Monitoring Service knows about the whereabouts of the Monitoring Agents from the settings in Monitoring Agents.
You can add a link to provide additional external documentation by adding a Link to the Category.