implement per plot legend
@parrenin
Submitted by Frédéric Parrenin Link to original bug (#748752)
Description
Created attachment 302722 example chart where it would be useful to add a per plot legend
Currently, it is possible to add a legend to a chart. It would be also useful in some circumstances to add a legend per plot. I attach an example chart where such functionnality would be useful. It is probably possible to use several charts with their own legends, but this is far less convenient.
Attachment 302722, "example chart where it would be useful to add a per plot legend":
Version: 1.12.x