Create a new assembly or assembly block - Intergraph Smart 3D - Help - Hexagon

Click New (Block) Assembly Command to display the New (Block) Assembly Ribbon.

Select content for the new assembly or assembly block from the Workspace Explorer or from the model.

Select Assembly or Assembly Block in the Type box. If you select Assembly, you can also select Config Project Root as the parent assembly.

Select a parent assembly or block for the new assembly in the Parent Assembly box.

Click Accept to accept the assembly content and move to the next step.

Click Add Secondary Objects to display the Secondary Objects dialog.

Select the types of secondary objects to include in the new assembly and click Close.

If needed, click Manufacturing Orientation  to specify a manufacturing orientation for the assembly.

Set assembly user-defined planar manufacturing orientation

Set assembly manufacturing orientation by object

If needed, type a new name for the assembly in the Name box.

Click Finish.