's Camera styles

Thank you very much!.. Is there a way to add “pinch to zoom” option for mobiles? can I get any BP guide?

and when I’m clicking the object to focus, there is an error message “PIE:Error: Error Blueprint Runtime Error: Accessed None trying to read property FocusedItem from function: ‘ExecuteUbergraph_Cam’ from node: SetActorLocation in graph: EventGraph in object: Cam with description: Accessed None trying to read property FocusedItem”.