Item-details set up


I have inherited the application and am new to Appsheet so I would like to ask for help.

I understand the item details is this (I can see it when I click on the item in the view)


I am not able to find any related view so I created my own set it up as Ref but do not know how to set it up so it is visible when I click on the item.

Please advise, thank you.