JavaScript must be enabled in order to use this site.Please enable JavaScript in your browser and refresh the page. To Resynchronize DGN File Level Definitions with Their Level Library Sources Do one of the following: In the lefthand pane of the Level Manager dialog, select the open DGN file, then click the Update Levels icon. orIn the lefthand pane of the Level Manager dialog, right-click the open DGN file. From the pop-up menu, choose Update Levels. Parent topic: Resynchronizing DGN File Levels with Library Levels