Insert multi-view blocks into a drawing by dragging and dropping them from the Tool Palette, or by referencing their definitions using DesignCenter.
After a multi-view block has been inserted into the drawing, additional references can be added by using the mvblockadd command.
Predefined multi-view blocks are located in the following folder by default:
Windows 7: \\Program Data\Autodesk\C3D 2020\enu\Data\Symbols\Mvblocks
Note: Multi-view blocks are embedded in an enclosing block reference when they are initially inserted and must be exploded before they can be recognized by Autodesk Civil 3D as a multi-view block object.