You can find the next selected column after the current column by selecting Cols > Column Selection > Next Selected Column. Similarly, you can find the previously selected column before the current column by selecting Cols > Column Selection > Previous Selected Column.
Each time you select one of these options, the next or previously selected column appears and flashes. The options are available only when columns are selected.
You might want to use this feature to look at intermittently selected columns in a large data table.