The Explorer window displays all search paths defined for the selected SchemaAgent Server as well as the relevant files contained herein. Depending on your installation, these search paths can be configured directly in the Configure Paths tab of the Explorer window (if you are connected to a LocalServer) or in SchemaAgent Server (if you are connected to a network-based server). Consequently, the Configure Paths tab is only visible if you are connected to a LocalServer.
The Hierarchical tab in a tree structure shows all files for which a file extension has been defined in all the search paths defined in the selected SchemaAgent Server (see screenshot). Folders that contain a supported file are colored dark yellow. Folders that contain no such files are colored light yellow.
You can hide folders that contain no supported files by unselecting the option Show Empty Folders in the context menu.
The Flat tab (see screenshot) displays a flat list of all monitored files in all search paths defined in the selected SchemaAgent Server, as well as all schemas in the External files folder (i.e. schemas referenced by schemas in the search paths, but which are not themselves in any search path), if such schemas exist. Each file entry is displayed with its location and its status.