SYMPTOMS
In Microsoft Excel 98 Macintosh Edition, if you select a range that
includes nonadjacent cells and attempt to perform a command on those cells,
you may receive one of the following error messages:
Cannot use that command on multiple selections
The command you chose cannot be performed with multiple selections.
Select a single range and click the command again.
CAUSE
In Microsoft Excel, the error message appears when you use one of the
following commands with a nonadjacent cell range:
AutoFormat
Sort
AutoFilter
Form
SubTotals
Text to Columns
Group and Outline