I figured out what was missing from the changes I was making. The workbooks are 100% editable once moved to a custom folder, one just has to pay attention to the Oracle design that uses parameters heavily within each workbook. Thanks for pitching in though @RVohra, I appreciate it.

Can we use data augmentation to load additional data to the same tables that the seeded data pipeline is loading? I'm referring to rows, not columns of course.

Thanks for responding @Sumanth V -Oracle. The other source is not a Fusion application DB, it's a standalone ADW instance. Are you saying it isn't possible to point to another database for data? Or are we saying we cannot add data to a Fact (let's say) from 2 sources?

Are there any standard guidelines somewhere for combining multiple subject areas within an FDI workbook?