Good for you for wanting to display the Project Summary Task, aka Task 0 or Row 0. It really needs to be displayed in every project so that we can see the overall summary for the entire project. The other method is to display the Gantt Chart view, to click the Gantt Chart Format ribbon tab, and then to select the Project Summary Task checkbox at the right end of the ribbon.

Also, you might want to take a look at one of my recent YouTube videos in which I discuss the Project Summary Task, and other important steps in initiating and planning a project at:

https://youtu.be/rRDqNh1g-qM

Hope this helps.