Hi there,
I'm having a hard time taking a column (Composite) from my raw data and pivoting it to group by and use as a merged cell column header. This is an example of my raw data set.

I'd like to use Composite as a merged column header above the AUM, MTD and IndexMTD values so that it looks something like this.

Anyone have any ideas? My input data is attached.
Thanks in advance!
Best,
Andy