3.6 Queries, edits, and legends
Yorick allows you to query the current display list, and to edit parameters such as line types, widths, and the like. I usually choose to simply make a new picture with corrected values; the existing low level editing command is more suited to be the basis for a higher level menu driven editing system.
3.6.1 Legends Setting plot legends. 3.6.2 plq and pledit The plot query and edit functions.