New to site. Looking for examples of PowerShell Tiles (Grid and graph)

Hello:
New person here to the community.

I have a very basic 101 question.
I have created both a PowerShell grid and line graph tile.
I can see in the response data step, the information coming back.
I have a few colums I am not concerned with.

  1. How do I in the next step (grid columns) indicate that I want to display for example
    The 3rd column of the PS object/table as the X axis and the 4th column as the y value?

  2. Is there a good repository of PowerShell implementation examples for Squared up online somewhere?