Timeseries: adjust y-axis range manually
Whether without or after zooming, it may be convenient to perform a final adjustment of the y-axis range to get a 'nicer' looking axis with custom boundary value. This should be feasible by clicking on the y-axis and enter lower and upper boundaries 'by hand'. This may be thought as a final adjustment w/o further zooming possibility except one clicks on "show all" or refreshes the plot.