(ORG-8538)
A new dialog/X-Function has been added for reducing columns in a worksheet. This is accessible from the Worksheet: Reduce Columns... menu.
The dialog has options for reducing columns by deleting-skipping columns, or by merging columns with options to merge by first point, average, min, max, sum etc.
The reduce by merging values option has also been added to the Reduce Rows dialog.
