I have to export a map. In my map, I unified several features under the same colour because because for my job they are exactly the same. My problem is that, when I create a legend, I get something like this:
What I would like to do is to get rid of this long list of features and have in my legend only 4 elements: one marked by a green colour, one by blue color, one by pink and the last one by brown (and then to rename them). How can I remove the legend items I do not want?