Manuellement Reference line per period

[#1]

Hi,
I perfom control charts and i computer cpk for and centrre line with UCL and LCL. This items are added manually with a double clic on the axis. I would like to addition different centre lines calculated permet period (e.g: period 2015 to 2016 Ref line=0.60 and for the 2016 to 2017 Ref line=0.70).
Thans in advance
Bud

[#2]

check out this thread.

https://community.jmp.com/t5/Discussions/How-to-add-reference-lines-automatically-to-variability-cha...