You are definitely not alone!
If you want to try it out, I would suggest spending a little time with the Pivot command help article. We have several simple examples, including a couple of short video clips (scroll down a bit to view these) in the Quick Create section.
In DataGraph, the Pivot command does more than the standard Pivot in Excel for example. You can use with just one, two, or three columns. It can give counts on categorical or numerical data or calculate statistics across a group of data.
If you’re really feeling brave, we did a webinar on the Pivot command last fall.
https://www.youtube.com/watch?v=9SlNfuIAHyo
Anyway, it can be a very useful tool for data processing, but not for everyone!