Plots -> PgfPlotsX: Inserting a legend title?

Hi!

I am using Plots with the pgfplotsx() option. Is it possible to easily add a legend title using this package?

Something like this:

image
(Not my picture found here https://statisticsglobe.com/change-legend-title-ggplot-r )

I only care about solutions for the PgfPlotsX package, since I am using this plotting package for all my other plots.

I am aware of the option of starting from an empty tikz document and building everything manually using PgfPlotsX, but this seems cumbersome when I only need to do this one thing.

Kind regards

Should be as easy as plot(1:5, legendtitle = "Title")

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