Paginated Report - Sub Report Visibility in App

Hi All

We are testing the migration of SSRS reports to PBI Premium Paginated Reports. These reports make heavy use of sub-reports as shown below in the report builder.

The challenge is, how do I prevent users in the service from seeing sub-reports and enable them to see only the parent report?

I have tried publishing an App, however unless all the sub-reports are published into the App it does not work. So in the App users see all sub-reports as shown below:

The only tab above I want visible is Asthma_Report. All others need to be hidden.

Thanks

Adam