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#550 Unique Keys (Remove duplicate keys while plotting)
So I was surprised to see there is no option like set key unique which will remove duplicate keys and only keep unique ones. If you have a ton of plots to be made from different files you can loop through them with same style and title and it'll be one key.
For example:
plot for [i=1:50] "first.dat" using 0:i with lines linestyle 1 title "First",\
for [i=1:50] "second.dat" using 0:i with lines linestyle 2 title "Second"
With unique option this can have just 2 entries instead of 100.
Current alternative is to do it with notitle and later add a keyentry manually. But I feel like the unique feature might be worth it. As the keyentry option would require you to have the style at two place.
