Designing process structure > Creating product structures > Authoring MBOM > In-context authoring
Clone an in-context assembly
You can clone an assembly with in-context edits from a line in an MBOM to a different line in the same MBOM. This command:
Retains all in-context edits in the cloned assembly.
Lets you copy, reference, or exclude in-context attachments from the structure being cloned.
Optionally splits occurrence effectivity dates or ranges between the assembly being cloned and the cloned assembly.
Note
Existing BOM lines are not changed, only direct attachments that are on new items that are cloned. This command can also control in-context attachments in the cloned structure.
Cloning rules are defined by your administrator using the MECopyAssemblyInContextTemplates preference. This preference points to the Item.Item.CopyAssemblyInContext preference, which lists the cloning rules for the case in which the source is the first item and the target is the second item. By default, all items are cloned. Your results may not follow the same rules as those in this example.
Procedure
If you are editing in context, hide in-context editing mode.
In the MBOM Product or Workarea view, select the line to be cloned.
Choose Edit→In Context→Clone Assembly in Context.
In the Clone Assembly In Context dialog box, the selected line is displayed in the Copy Of box.
In the same MBOM, select the equivalent line to which you want to clone the assembly, and next to the Paste To box, click .
Click Next.
(Optional) In the Assign information section, in the ID box, type an ID or click Assign, and optionally, in the Name box, type a name for the cloned assembly.
If you do not type a name, the assembly inherits the name of the structure you selected in step 2.
Click Next.
For each attached object, in the Define Attached Objects section, from the Copy Option column, select how the attachments should be handled.
Copy Reference creates a reference to the object attached to the structure that you are cloning.
Copy Object copies the object to the cloned structure.
No Copy creates neither a reference or copy of the object in the cloned structure.
Click Next.
(Optional) In the Related Objects Information section, expand the related structure items being cloned, type or assign new item revision IDs or related object names, and modify any user data as needed.
If you do not change the revision IDs, they are automatically assigned. If you do not change the related object names, they retain the names of the structures being cloned.
Click Next.
(Optional) In the Occurrence Effectivity Cutback section, set occurrence effectivity.
To set a new effectivity for:
The structure being cloned, click next to the original assembly.
The cloned assembly, click next to the cloned assembly.
In the Occurrence Effectivity dialog box, define the appropriate effectivity for the structure being cloned or the cloned assembly.
- Click Finish.
Results
The assembly is cloned with all in-context edits intact.
Source: https://docs.sw.siemens.com/en-US/doc/282219420/PL20251212545240207.pmphelp/xid1096579 · retrieved 2026-07-11