The theme of a report determines which PowerPick data table it's pulling from, such as history or materials. The columns you can add to a report are the columns from that data table.
Some of the terminology used in PowerPick or what some values represent may be unfamiliar to you. If there's a column you're unsure about, you can check our Report Data Reference here: https://itempath.com/docs/report-data
You will need to select the theme of the report from the list on the lefthand side of the reference.
