After creating a plot like this:
dt = Open( "$SAMPLE_DATA/Big Class Families.jmp" );
gb = Graph Builder(
Graph Spacing( 4 ),
Variables( X( :height ), Y( :weight ) ),
Elements( Points( X, Y, Legend( 3 ) ), Smoother( X, Y, Legend( 4 ) ) ),
SendToReport(
Dispatch( {}, "Graph Builder", FrameBox,
{Add Image(
1,
Set Blob(
Char To Blob("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", "base64compressed"), "png")
,
Bounds(
Left( 50 ),
Right( 60 ),
Top( 80 ),
Bottom( 100 )
)
)}
)
)
);

you can access the image via the report/Framebox and use the message << fill Graph to resize the image.
fr = Report( gb )[FrameBox( 1 )];
imgSeg = fr << FindSegs();
imgSeg << Fill graph
