Shade in red within control limits with phases used to create different limits
I recently learnt how to shade in specified regions on a time-series plot which I think is a great feature. (See attachment)I would like to do something similar on a control chart when I have different phases used.I know that a default option is to "Shade zones" which uses the colours red, yellow and green. As in the time-series I include in attachment I would prefer to shade in the region within ...