How can I assign a data source in a Crystal Reports template to an IFS invoice document, if the invoice is divided into several types (e.g., standard, collective) and uses several system reports (_REP)?

For example: I prepared a Crystal Reports template for a standard invoice. I modified the "CUSTOMER_ORDER_IVC_REP" report by adding my own data. If I want to generate a PDF for a collective invoice, the system requires adding a Crystal Reports template with a connection to the "CUSTOMER_ORDER_COLL_IVC_REP" report. To generate a PDF document using Crystal Reports templates, it is necessary to prepare copies of print templates with data sources for different system reports. Is there a way to handle one template with a connection to different reports? Maybe there is another solution to this problem?