Capacity vs Demand by Resource report has a field called 'Drop Down From'
There is a null value without the ability to change.
What is the purpose of this parameter?
Release : 16.1.0
Working as designed.
This field was going to be hidden however there is a constraint that has prevented it. This comes from the ability to drill down to this report from two different reports.
Open Over/Under Allocation by Role and run the report to get data
Click the hyperlink for one of the roles
This will open the Capacity vs. Demand by Resource report
Look at the Drill Down From field. It will show 'PROJECT_ROLE'
If you go directly to the Capacity vs, Demand by Resource report, it will show Null because you did not access the report from one of the other reports.