There is an unusual anomaly that occurs when you click on the blank space beneath the section of rows in a pattern. The column (not the channel) directly above the cursor is selected starting from the row where the cursor was focused last, to the last row. I've often wished for a column selector and due to some kind of glitch, the beginning of this is already in place, and i'm hoping with a little tweaking we can turn it into a full-blown feature.
The column selection method could occur either by keypress, click and modifier key, or clicking in this blank spot, and would select the whole column. But special means would have to be coded to ensure that selecting the Channel FX value column also selects the Channel FX command column, as dragging the selection does not move the values.