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Verifying structure design > Modifying process plan data > Understand the Gantt

Expanding and collapsing structures

When expanding and collapsing structures in the navigation pane of the Process Gantt view, the behavior differs from the expand/collapse behavior in the navigation pane of the application. In the Process Gantt view, if a structure that includes expanded children is collapsed, the children are also collapsed.

In the navigation pane of the application, if you collapse the selected line, and then expand it again, you see the same structure.

In the navigation pane of the Process Gantt view, if you collapse the selected line, and then expand it again, you see the following.

Source: https://docs.sw.siemens.com/en-US/doc/282219420/PL20251212545240207.pmphelp/id1147034 · retrieved 2026-07-11