How to use a!querySelection with a!queryProcessAnalytics

Hello:

selecting a column such as "c3" is not working and returning null.

Any idea how to use a selection field for a process task report query?

We need to have 15000+ tasks in the task report, so we need to get a count of the total and use paging to handle this much data.

Thank you,

OriginalPostID-248800