I'm synchronizing data with an external database and the result is delivered to me on a sheet called All Items. Setting up a pivot table is easy. However, on the horizontal axis I need to display a custom value, computed from one of the columns in the externally linked data set.
When I go to Analyze -> Change Data Source, I can see that the currently regarded data area is called 'All Items'!Query. I'd like to extend it by a column or two, so that my pivot table can display these values as well.
So, instead of 'All Items'!Query as the data source I'd like to have 'All Items'!Query and the next two columns too. I have no idea how to approach it nor what to try. Suggestions would be warmly appreciated.
I tried to define my own area called 'All Items'!Query_and_stuff but the number of records retrieved during synchronization varies, so my extension needs to take that into the account. No idea how.