Pivot table. Select non-consecutive columns

Hi,
I would like your help to solve an issue for me:

When I have a wide range of data (in columns, say from A to X) and I only need the values in columns A and X, how can I then avoid to include the whole range of data in the pivot table range? (As is: Range A:Z. Would like: A:A Z:Z).

Thanks in advance for your help.

Kind regards

Arne