How can I customize Sales Invoice report in Dynamics 365 ?

Dynamaics 365 provides one OOTB Report for Sales Invoice named "Invoice Journal".

Below is a procedure to open the report.

From Left Navigation Select > Accounts Receivable > Invoices > Invoice Journal.

Now, When I open any Sales Invoice and Clicks on View > Original Preview

It will open SSRS report.

Now, I want to customize this report to add some extra fields in a report.

I know this report is accessed using SalesInvoiceController. Is there any way to extend this controller or any documentation regarding this?

I don't have much knowledge of X++.

Even I don't know which approach will be helpful to me to achieve this requirements.

Please guide me how can I start to customize this report?