Hi @Johnanderson,
There isn't a way to broadcast a selection in the customize panel the way you can within a report (i.e. holding the control, or command key). When I have to make changes like this when there are hundreds of lines to customize I usually resort to scripting. Have you used JMP scripting before? With a few modifications you could accomplish this with the following script:
Open("$SAMPLE_DATA/Cholesterol Stacked.jmp");
//launch the oneway analysis
ow = Oneway(
Y( :Y ),
X( :Time ),
Matching Column( :Patient ),
X Axis Proportional( 0 ),
Matching Lines( 1 ),
);
//wait for 2 sec so you can see the change
Wait(2);
//make a referernce to the frame that's holding the lines
owFB = Report( ow )[Framebox( 1 )];
//loop through from 1 to 20 (patients) and set the line style
for(i=1,i<=20,i++,
owFB << DispatchSeg(LineSeg(i), {Line Style("Dotted")})
);
To make this work for your situation you would need to replace the analysis script I used with your own, and modify the number of lines that need to be styled (I had 20 sets in this example).
I hope this helps!
@julian