PowerApps and Business Central Opportunity Card

Dears I am trying to build a simple App with PowerApps acting exactly like Business Central.

I am able to make an App for Customer Card and the users able to create new customers from the PowerApps, But when I search for the datasets of Opportunity I cannot find.

I am sure there is a way to add that.

Also, I need to do the same for the Contacts

Please help.