To redefine a block in the current drawing with one found on your computer, perform the following: From the Draw menu, choose Insert.Enable the From File toggle and click the Browse button.In the File Name control of the Insert Block dialog box, key-in %AppData% and click Open:Locate the Carlson Software folder and "drill-down" to the desired SUP folder.Locate the desired/updated block and then press Enter.Upon attempting to insert the block into the current drawing, choose Yes-Redefine Block.Specify the insertion point for the block.The block is immediately redefined, and all instances of the block in the drawing are updated.