I would like to plot the data distributions but coloring each variable individually.
Example:

I found the following property which encodes color base on max/min gradient or user specific data.

However, this might not the be the right approach.
The code for the example which I manually composed to explain the goal is here:
// Start of script;
Names Default To Here( 1 );
Clear Log();
dt = Open( "$SAMPLE_DATA/Bands Data.JMP" );
Graph Builder(
Size( 534, 456 ),
Show Control Panel( 0 ),
Variables(
Y( :viscosity, Combine( "Parallel Merged" ) ),
Y( :proof cut, Position( 1 ), Combine( "Parallel Merged" ) ),
Y( :blade pressure, Position( 1 ), Combine( "Parallel Merged" ) ),
Color( :viscosity )
),
Elements( Points( Y( 1 ), Y( 2 ), Y( 3 ), Legend( 10 ) ) )
)