Service content pack - source data

Hello,

Few questions wrt PBI Service content pack (Financial Performance ervice content pack) - 

1. Is the data available in Service content pack a dummy one or is the data fetched from the Dynamics365 from my Organisation ?

2. How do I perform calculations/transformations on this data set since we can only connect to Service content pack from PowerBI service?

3. How do I identify the calculated measures/columns within the dataset available in Service content pack?

4. When I connect to my Dynamics365 of my Organisation, I do not see some of the metrics/KPI columns available with the dataset in Service content pack (Ex. For Financial Performance service content pack, metrics like Actual, Budget,EBIT etc.)

Thanks,

Ajay