Last Update: 10/2/2015
If you select more than one whole column or one whole row, even non-contiguous selections, you can manually resize all highlighted columns/rows simultaneously.
To manually resize, point to the space at the right edge of a column selection or the bottom edge of a row selection, and when the pointer becomes a double-headed arrow, drag the edge of the column/row heading.
This can be very useful in Analysis Report Sheets. In any table, right-click and choose View: Column Header. Now you can select multiple columns to manually resize.