Selecting Data points via the axis labels?

[#1]

In Graph Builder, is there a possibility to select the data points via a (Shift, Alt, Ctrl) click on a label of a categorical/ordinal axis?

i.e. by clicking on "14", all data points corresponding to age=14 get highlighted:

[#2]

One could add a heatmap sub-graph to allow the selection.

But is there a direct way, just using the axis labels?

Names Default to Here(1);
dt = Open( "$SAMPLE_DATA/Big Class.jmp" );
dt << new column("X",Nominal, set each value(1));

Graph Builder(
	Variables( X( :age ), Y( :weight ), Y( :height ), Y( :X ) ),
	Relative Sizes( "Y", [100 100 15] ),
	Elements( Position( 1, 1 ), Points( X, Y, Legend( 12 ) ) ),
	Elements( Position( 1, 2 ), Points( X, Y, Legend( 13 ) ) ),
	Elements( Position( 1, 3 ), Heatmap( X, Y, Legend( 19 ) ) )
)

[#3]

I like your heatmap idea better, but here's something that almost works and might help drive the discussion forward. I was thinking that a data filter instead of the axis would work, but I couldn't find a way to get rid of all the controls. 

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dt = open ("$SAMPLE_DATA/Big Class.jmp");
nw = New Window( "Graph",
	V List Box(
		g = Graph Builder(
			Size( 754, 634 ),
			Show Control Panel( 0 ),
			Show Legend( 0 ),
			Show X Axis( 0 ),
			Show X Axis Title( 0 ),
			Variables( X( :age ), Y( :height ), Y( :weight ) ),
			Relative Sizes( "Y", [127 128] ),
			Elements( Position( 1, 1 ), Points( X, Y, Legend( 18 ) ) ),
			Elements( Position( 1, 2 ), Points( X, Y, Legend( 19 ) ) )
		),
		df = dt <<
		Data Filter(
			Location( {2831, 76} ),
			Width( 741 ),
			Add Filter(
				columns( :age ),
				Where( :age == 17 ),
				Display( :age, "Blocks Display" )
			)
		)
	)
);
df << show controls (0);

[#4]

I often open a Distribution platform on the variables in the plot. I use dynamic linking to select values and define selection subsets. Now I can use the histogram between the column name and data values for the same purpose.

[#5]

Add-On topic:

If several columns are used as hierarchical X labels, there is an option for each subplot and plot style to use or not use the respective column as part of the hierarchy.

This can be extremely useful:

by deselecting the column which is used as 2nd level on the X axis, Heatmaps will just be separated by the 1st level, like this:

Unfortunately, deselecting a column doesn't have any effect - the graph looks exactly the same with "X - name" selected and deselected

Graph Builder(
	Variables(
		X( :age ),
		X( :name, Position( 1 ) ),
		Y( :weight ),
		Y( :X ),
		Color( :age ),
		Frequency( :one )
	),
	Relative Sizes( "Y", [100 15] ),
	Elements( Position( 1, 1 ), Points( X( 1 ), X( 2 ), Y ) ),
	Elements( Position( 1, 2 ), Heatmap( X( 1 ), Y ) )
)

[#6]

Old topic I know, but I echo @Mark_Bailey's comment about histograms, here is an example:

JSL to recreate this graph:

View more...

Names Default to Here(1);
dt = Open( "$SAMPLE_DATA/Big Class.jmp" );

Graph Builder(
	Size( 302, 346 ),
	Show Control Panel( 0 ),
	Variables( X( :age ), Y( :weight ), Y( :height ), Y( :height ) ),
	Relative Sizes( "Y", [130 197 33] ),
	Elements( Position( 1, 1 ), Points( X, Y, Legend( 12 ) ) ),
	Elements( Position( 1, 2 ), Points( X, Y, Legend( 13 ) ) ),
	Elements( Position( 1, 3 ), Histogram( X, Legend( 22 ) ) ),
	SendToReport(
		Dispatch(
			{},
			"height",
			ScaleBox( 2 ),
			{Label Row( Show Major Labels( 0 ) )}
		),
		Dispatch( {}, "Y 2 title", TextEditBox, {Set Text( "" )} )
	)
);