JavaScript must be enabled in order to use this site.Please enable JavaScript in your browser and refresh the page. Common Tools Four tools are common to many of the categories in the Explorer and are detailed in the table below. Tool Description Refresh Refreshes the active tree to reflect changes to the DGN file. Transparent Turns on the transparency for selected graphical items. Zoom Zooms the selected graphical items. Isolate Isolates the selected graphical items. To Zoom to an Item Querying Data in Explorer Parent topic: Managing Workset Data with Explorer