Perspective time series chart y axis range

I am indirect addressing to configure the time series chart, pulling data from ignition historian.
The trend can display the values, but I cannot configure the range of the chart.
Maybe I missed out some settings, can anyone help out?

for example I want to display the pH value using Y axis range 0-14. Currently it display the range dynamically.

Many thanks.

resolved. it works by linking the series and axis.