Gnuplot Z-Order or Key Order

Question

You can change the z-order of two functions built together by reordering the order that they display in the graph function, but this also changes the order in the key. Is there a way to reorder either the order in which the function appears in the key, or in the z-order, regardless of the order in which it appears in the graph function?

Answer 1

If you can get the desired z-order by simply changing all the functions you can perform

set key invert; 

to undo them in the key.