"When you have a trellised view there is no way to see what the trellis column is especially. For the x and y axis, size etc. You can view the columns on the axis selectors.
This is especially tru when you have a binned column (as categorical) and the trellis lable shows up as
O.5 < x < 1
And there is no way to see which column was binned and used in the trellis."