Automatically undisplay columns that show no differences what so ever (indicated by not highlighting the columname)
when inspecting a comparison without recalculating the entire thing. I am bothered about a huge number of columns without interesting
information, beacuse they don't contain differences at all.
I only want to focus on the few columns containing the differences (i.e. indicated as colour highlight on the column name field).
Manual deselection for over 100 columns is not practical.