This article tells you how you can show work packages on sum level in Takt and Line of Balance
Showing a work package allows allows you to simplify complex schedules by showing all child work packages within a parent sum package as a single, consolidated unit. For example, your entire "Interior Phase" can be displayed as one streamlined package, making high-level overviews cleaner and easier to read.
This can be done by
1. Right clicking on a work package to open the menu.
2. Selecting the Show as sum work package.
3. If you want you can go back to the previous situation, you can open the menu and select Show as detailed work packages.
You can move between different levels of work packages with the Show as sum work package and Show as detailed work packages option. The levels are determined in the gantt hierarchy. If you want to add in a new level, please do so in Gantt.
Show as sum work package works in both Takt and LoB.