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Multi-BOM Management general functionality > Multi-BOM Management fundamentals

Pack/Unpack a bill of materials

Click one of the following two buttons on the toolbar to group or ungroup multiple, identical components in one level of the assembly to pack and unpack the BOM.

  • Click to pack.

  • Click to unpack.

Note

When lines are packed, one of the packed lines is always designated the master packed line. If the TCVIS_Selection_From_Viewer preference is set to true, you can select packed objects in the viewer using the buttons available in the 3D Selection toolbar. However, if you select the master packed line, all packed lines are selected. If you do not want this behavior, you must unpack the packed lines before selecting the individual objects in the viewer.

Source: https://docs.sw.siemens.com/en-US/doc/282219420/PL20251212545240207.xid1364469/pack_unpack · retrieved 2026-07-11