Are you talking about Variability chart of Fit Y by X? Title is about FitYbyX as is plot, text is for variability chart and so is preferences image?
Using JMP17.0.0, Fit Y by X
There are some settings in the right click customize menu which you could change
or preferences under Oneway
or change them from the platform (hold alt and left click on red triangle to open all options at the same time)
-Jarmo