Building and editing product structure > Saving and refreshing the product structure > Save changes in Structure Manager
Saving or discarding changes with multiple windows
You can open multiple windows by using the split window button . If you make structure changes, only those changes made in the window where you choose the Save command are saved. If you create additional windows and open structures in those windows, changes made in the other windows are not saved. If you want to save changes made in other windows, you must explicitly choose the Save command in the window in which the structure changes were made. Example of saving in multiple windows In window 1, remove E from M. This also causes E to be removed from M in window 2. In window 2, remove L from D and change a note on J. Add a note to Z in M and this change is also seen in window 1. In window 1, save the product structure. This action saves changes to assembly M but not D.
Note Changes are saved, regardless of where they are made. Therefore, the changes made in window 2 to M are also saved. The save action in window 1 thus causes a partial save of the changes made in window 2, on those assemblies that are also seen in window 1. In window 2, save the product structure. This action saves changes to assembly D. Discarding changes when the structure is open in multiple windows If the same structure is open in multiple windows then the modifications to the structure in one window are replicated to the other windows. Even if the user explicitly chooses to discard the modifications while closing a window, the modifications are not discarded from the other open windows. To discard the changes, all instances of the structure in all open windows must be closed without saving the changes. Only when the last window is closed without saving, the pending BOM modifications are discarded.
Source: https://docs.sw.siemens.com/documentation/external/PL20251212545240207/en-US/tc_help/pse/jdx1737253331775/tin1737253332860/qdh1737253333095/build_savechangesmultwins.html · retrieved Sat Jul 11 2026 00:00:00 GMT+0000 (Coordinated Universal Time)