Hello Kristin,
Thanks for information. As i referred to that link before itself but there is no information about Pivot Mode feature in that link.
Yes, the Pivot mode will be displayed when you click on the tool panel in Resource staffing in New UX.(please refer below screenshot)
As you can see in above screenshot, The Row groups and Values fields are greyed out. (as drag n drop option is also not happening in that area).
When i click on pivot mode option, there is no data visible on the screen.