From the discussion there:
dt = Open( "$DOWNLOADS/CDF_Data.jmp" );
new column("one_Nr", formula(1));
dt << Graph Builder(
Variables(
X( :Data ),
Y( :"Cumulative Probability[Data]"n ),
Y( :one_Nr, Position( 1 ) ),
//Y( :Prob DataX, Position( 1 ) ) // enable after saving the data to the table
),
Elements(
Points( X, Y( 1 ), Y( 3 ), Legend( 11 ) ),
Points( X, Y( 2 ), Legend( 2 ), Summary Statistic( "Cumulative Percent" ) ),
Line(
X,
Legend( 3 ),
Connection( "Step" ),
Summary Statistic( "Cumulative Percent" ),
Interval Style( "Band" )
)
),
SendToReport(
Dispatch( {}, "400", ScaleBox,
{Legend Model(
11,
Properties(
1,
{Marker( "FilledCircle" ), Marker Size( 6 )},
Item ID( "Prob Data", 1 )
)
), Legend Model(
2,
Properties( 0, {Marker Size( 10 )}, Item ID( "Sum %(one_Nr)", 1 ) )
), Legend Model(
3,
Properties( 0, {Line Color( 8 )}, Item ID( "Count", 1 ) )
)}
)
)
);
If the missing horizontal line and first step from the left edge at 0 to the first point's x-value and up (link ) is OK for you,
the approach via "Line" + "Cumulative Percent" (purple line) is a nice shortcut.