[FEATURE] Add ability to plot multiple measurements in one graph

[JonasDaWi]

Sometimes, a device measures more than one thing. In these cases it is almost always interesting, to see the different data plotted in the same graph. IMO a simple possibility to plot the 1st and the 3rd value of a measurement array would be to plot measurement=[1, 3.4, 15] via plot=[true, false, true]

[ff6347]

Thank you for your suggestion. We already have the plotting of all values and the unit definition for each one in our backlog. We will keep you updated on it and close this issue when this is implemented