Maybe something like this?
Names Default To Here( 1 );
dt = Open( "$SAMPLE_DATA/Big Class.jmp" );
bv = expr(dt << Bivariate( Y( :weight ), X( :height ), Fit Line() ));
tm = expr(dt << Treemap( Categories( :age ) ));
bp = expr(dt << Bubble Plot( X( :height ), Y( :weight ), Sizes( :age ), Coloring( :sex ), Circle Size( 6.226 ),
All Labels( 0 )));
dtd = Open( "$SAMPLE_DATA/Diabetes.jmp" );
dist = expr(dtd << Distribution( Continuous Distribution( Column( :BMI ) ) ));
New Window( "Combined graphs",
lineup box(ncol(2), bv, tm, bp, dist);
);