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Selecting the small arrow to the right of the icon shows the following menu:
Toggle graph
When multiple data series are selected for a single data type (parameter), the graphs will be placed in one subplot of the graph. This sometimes complicates the analysis of time series with different data ranges. By clicking the above-mentioned button, you can change the layout of the chart to either:
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Toggle Filter and Shortcuts
Hide unreliables
Stack plot
Logarithmic value axis
Clicking switches the plot between a linear or logarithmic axis.
Show legend at vertical axis
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