Ian's solution here will work.
Here's some sample code:
dt = open("$sample_data\Car Physical Data.jmp");
biv = dt << Fit Group(
Bivariate( Y( :Weight ), X( :Turning Circle ), Fit Line( {Line Color( {213, 72, 87} )} ) ),
Bivariate( Y( :Weight ), X( :Displacement ), Fit Line( {Line Color( {213, 72, 87} )} ) ),
Bivariate( Y( :Weight ), X( :Horsepower ), Fit Line( {Line Color( {213, 72, 87} )} ) ),
Bivariate( Y( :Weight ), X( :Gas Tank Size ), Fit Line( {Line Color( {213, 72, 87} )} ) ),
<<{Arrange in Rows( 4 )}
);
// A reference to the report layer: bivRep is also a list
bivRep = biv << Report;
// 'Make Combined Data Table' avoids having to message to each item in 'bivRep'
dt2 = bivRep[1][TableBox(2)] << Make Combined Data Table;
dt4 = bivRep[1][TableBox(4)] << Make Combined Data Table;