I would like to create a task in my project which spans the duration of a summary task. I have a summary task which encompasses several tasks, with their own respective dependencies. I would like to create an actual task (not summary) that spans the same duration as this summary task. I can somewhat accomplish this by scheduling a standard task with “Start-To-Start” using the first task under the summary, and “Finish-To-Finish” of the last task in the summary. However, if I reorder the tasks under the summary, the new task, which I want to be the same duration as the summary, won’t update according to the beginning and end of the summary task, but rather the beginning and end of the previously first and last tasks of the summary. The attached image should help clarify what I mean.

In this example, I would like “Workbook Capture” to span the duration of “Manufacturing”, with start to start and finish to finish relationships. Currently, “Workbook Capture” has a start to start dependency with Machining and a finish to finish relationship with Assembly. If I were to reorder Machining or Assembly, Workbook capture would then span the new duration of those tasks rather than the summary task of “Manufacturing”.