Creating manufacturing BOMs > Creating product structures > Authoring MBOM > In-context authoring
Cloning, copying, and replacing in-context assemblies
When you edit an assembly in context, you can modify occurrence properties of the lines beneath the top selected line in the context of that line only. No matter how many places the in-context lines occur under other top structures, the changes will only affect this line. For more information on in-context editing, see Performing in-context editing.
If you have an assembly with in-context edits that is almost identical to another required assembly—for example, you have a parent with a specific occurrence effectivity and you need to create a new parent with different effectivity—you can save time by using one assembly as a template for another. In MBOM Product or Workarea views, you can:
Use the Clone Assembly in Context to split an MBOM structure into two structures by cloning it within the same MBOM. You can also copy, reference, or exclude attachments from the structure being cloned and change the occurrence effectivities of both the items being cloned and the cloned structure.
Copy an assembly with in-context edits and paste it elsewhere in the same MBOM using the Paste Assembly in Context command. This command creates a new absolute occurrence of the assembly while retaining in-context edits and attachments. Standard Teamcenter copy and paste commands do not retain any edits made in the assembly in the context of the parent lines above the line you are copying and pasting, so without this capability, you would have to remake these missing in-context edits.
To define different item types for different manufacturing nodes or simply change the item type of a manufacturing node because your manufacturing plan has changed, use the Replace Assembly with Any Item Type command. This command replaces the top item of an assembly with an item of a different item type and retains the original item's in-context edits. Using this command, you can also copy, reference, or exclude attachments from the original item.
Source: https://docs.sw.siemens.com/en-US/doc/282219420/PL20251212545240207.xid1364469/xid1096846 · retrieved 2026-07-11