How to get/read chart's y-axis max value?

[#1]

For a given JMP chart (e.g. Variability chart, Box chart, etc) how to have JSL read in the chart's current y-axis maximum value?

Usually this is contained within SendToReport within a Dispatch (so I know how to change it in JSL).  But I'd like to read in the latest value in the event the user manually changes it by dragging the y-axis up/down with their mouse.

thanks, DJ

[#2]

Here is the example given in the Help==>Scripting Index, for Axis Box:

Names Default To Here( 1 );

Open( "$SAMPLE_DATA/Big Class.jmp" );

biv = Bivariate(

      Y( :weight ),

      X( :height ),

      FitLine

);

rbiv = biv << report;

axisbox = rbiv[axis box( 1 )];

axisbox << Get Max;

You can also "Add Graphics Script" and in it check the yorigin and/or xorigin, along with the x and y range to trigger action taken when the axes are changed.