How to create multiple invoices based on grouping field value at Subscription Product Line

Summary:

While running Subscription to AR Billing jobs, multiple invoices should be created and invoice lines needs to be grouped based on Opp Id custom field at Subscription Product Line having same value when the custom checkbox field at Subscription Header is checked otherwise if this custom checkbox field is not checked then single invoice should be created for the whole subscription having different Opp ID.

Version (include the version you are using, if applicable):

24C

Code Snippet (add any code snippets that support your topic, if applicable):