Two Big Class.jmp drawings, how to use JSL to cut part of one of them, overlay on the other image?

[#1]

Let's draw the first picture

dt = Open( "$SAMPLE_DATA/Big Class.jmp" );
p1 = dt << Graph Builder(
	Size( 497, 379 ),
	Show Control Panel( 0 ),
	Show Legend( 0 ),
	Variables( X( :weight ), Y( :height ), Color( :sex ) ),
	Elements(
		Bar( X, Y, Legend( 5 ), Bar Style( "Needle" ), Response Axis( "X" ), Summary Statistic( "Sum" ) )
	),
	SendToReport(
		Dispatch(
			{},
			"weight",
			ScaleBox,
			{Label Row(
				{Automatic Tick Marks( 0 ), Show Major Labels( 0 ), Show Major Ticks( 0 ),
				Show Minor Ticks( 0 )}
			)}
		),
		Dispatch(
			{},
			"height",
			ScaleBox,
			{Min( 49 ), Max( 71 ), Inc( 5 ), Minor Ticks( 1 ), Label Row(
				{Automatic Tick Marks( 0 ), Show Major Labels( 0 ), Show Major Ticks( 0 ),
				Show Minor Ticks( 0 )}
			)}
		),
		Dispatch( {}, "graph title", TextEditBox, {Set Text( "Big Class" )} ),
		Dispatch( {}, "X title", TextEditBox, {Hide( 1 )} ),
		Dispatch( {}, "Y title", TextEditBox, {Hide( 1 )} )
	)
);

For the second mapping, overlay the second crop portion onto the first image to get this effect

p2 = dt << Graph Builder(
	Size( 171, 396 ),
	Show Control Panel( 0 ),
	Show Legend( 0 ),
	X Group Edge( "Bottom" ),
	Variables( X( :weight ), Y( :height ), Group X( :age, Size( 25 ), Show Title( 0 ) ), Color( :sex ) ),
	Elements(
		Bar( X, Y, Legend( 8 ), Bar Style( "Needle" ), Response Axis( "X" ), Summary Statistic( "Sum" ) )
	),
	SendToReport(
		Dispatch(
			{},
			"weight",
			ScaleBox,
			{Label Row(
				{Automatic Tick Marks( 0 ), Show Major Labels( 0 ), Show Major Ticks( 0 ),
				Show Minor Ticks( 0 )}
			)}
		),
		Dispatch(
			{},
			"height",
			ScaleBox,
			{Min( 49 ), Max( 71 ), Inc( 5 ), Minor Ticks( 1 ), Label Row(
				{Automatic Tick Marks( 0 ), Show Major Labels( 0 ), Show Major Ticks( 0 ),
				Show Minor Ticks( 0 )}
			)}
		),
		Dispatch( {}, "graph title", TextEditBox, {Set Text( "Big Class" )} ),
		Dispatch( {}, "X title", TextEditBox, {Hide( 1 )} ),
		Dispatch( {}, "Y title", TextEditBox, {Hide( 1 )} )
	)
);

[#2]

The ultimate goal is to save the combined picture to a cell in another table.

Thanks!