JavaScript must be enabled in order to use this site.Please enable JavaScript in your browser and refresh the page. To Rename a Toolbox In the Customize dialog ( File > Settings > Configuration > Customize ) , click the Tools tab. Expand the User Tools section and expand the open DGN file. Select the toolbox that you want to rename. Do one of the following: Click the toolbox a second time. orRight-click the toolbox and select Rename from the pop-up menu. A rectangle appears around the toolbox's name. Type a new name for the toolbox. Parent topic: Working with Custom Toolboxes