Last Update: 3/9/2021
Origin forces the legend to be updated when adding plot to a graph by default.
To prevent the forced update of the legend when adding a plot:
To make the legend reconstruct when adding/removing plots,
Origin 2020b had fixed the following bugs:
If you see problems above, please update your Origin to the latest version.
Keywords:legend, update, adding plot, adding data, removing data, removing plots, reconstruct legend