You can lock one or more columns against the left edge of the Result window to use for reference while you horizontally scroll the other columns.
To fix a column in place:
The column will be locked against the left edge of the window (if you selected a non-edge column, it will automatically be moved to the left edge). Note that when you scroll the Result window horizontally, the fixed column remains in place, while the other columns scroll by.
To free a fixed column:
The right-most fixed column is released. The scroll bar is readjusted to allow horizontal scrolling of this column.