How to use multiple columns with shape?

[#1]

The shape option in Graph Builder is very helpful to generate fancy plots with just a few baby-steps:

dt = Open("https://en.wikipedia.org/wiki/List_of_countries_by_system_of_government",HTML Table( 6, Column Names( 1 ), Data Starts( 2 ) ));

dt << New Column( "Country",Character,"Nominal",Formula( Word( 1, :Name, "{\!"" ) ));

dt << Graph Builder(
	Variables( Color( :Constitutional form ), Shape( :Country ) ),
	Elements( Map Shapes( Legend( 5 ) ) )
);

gives you:

... and you can use the legend to quickly select the appropriate countries - all respective 

Now let's look at a second, more complicated example:

View more...

dt2 = Open(
	"https://en.wikipedia.org/wiki/List_of_countries_and_territories_by_the_United_Nations_geoscheme",
	HTML Table( 1, Column Names( 1 ), Data Starts( 2 ) )
);


dt2 << New Column( "Country",Character,Formula( Word( 1, :"Country / Area"n, "{\!"" ) ));

For Each Row(
		dt2,
		dt2:Geographical Subregion[] = Map Value(
			dt2:Geographical Subregion,
			{"Australia and New Zealand", "-", "Caribbean", "East", "Central America",
			"central", "Central Asia", "central", "Eastern Africa", "East",
			"Eastern Asia", "East", "Eastern Europe", "East", "Melanesia", "-",
			"Micronesia", "-", "Middle Africa", "central", "Northern Africa",
			"North", "Northern America", "North", "Northern Europe", "North",
			"Polynesia", "-", "South America", "South", "South-eastern Asia",
			"South", "Southern Africa", "South", "Southern Asia", "South",
			"Southern Europe", "South", "Western Africa", "West", "Western Asia",
			"West", "Western Europe", "West", "—", "-"},
			Unmatched( dt2:Geographical Subregion )
		)
);

dt2 << Graph Builder(
	Variables(
		Page( :Continental Region, Levels per Row( 2 ) ),
		Color( :Geographical Subregion ),
		Shape( :Country )
	),
	Elements( Map Shapes( Legend( 24 ) ) )
)

The task:
in addition to the shapes of the countries, add a compass to quickly select the countries of the respective region.
With the shapes functionality it should be easy to generate the shapes for the compass  - but I don't know how to use 2 different columns as shapes ...

[#2]

The actual application case is: Wafermaps

View more...

Names Default to HERE(1);
Try(close(dt, noSave));
dt = Open( "$SAMPLE_DATA/Wafer Stacked.jmp" );
dtX = dt<< Summary(
	Group( :Lot_Wafer Label ),
	Freq( "None" ),
	Weight( "None" ),
	output table name( "Summary of Wafer Stacked grouped by Lot_Wafer Label" )
);

dtX << New Column( "split",Formula( Random Integer( 0, 20 ) ));

dt << Update(
	With( dtX ),
	Match Columns( :Lot_Wafer Label = :Lot_Wafer Label ),
	Add Columns from Update Table( :split ),
	Replace Columns in Main Table( None )
);
dt << New Column( "group",

	Formula( If( sqrt(:X_Die^2 + y_Die^2) < :split, -20, 20 ) ),
	Value Labels( {-20 = "inner", 20 = "outer"} )
);
dt << New Column("y",set each value(20));

dt << Graph Builder(
	Size( 839, 264 ),
	Show Control Panel( 0 ),
	Show Title( 0 ),
	Summary Statistic( "Median" ),
	Graph Spacing( 4 ),
	Variables(
		X( :X_Die ),
		X( :group, Position( 1 ) ),
		Y( :Y_Die ),
		Y( :y, Position( 1 ) ),
		Wrap( :Wafer, Levels per Row( 5 ) ),
		Overlay( :group ),
		Color( :group )
	),
	Elements(
		Heatmap( X( 1 ), X( 2 ), Y( 1 ), Y( 2 )),
		Points( X( 2 ), Y( 2 ), Legend( 7 ) )
	),
	Local Data Filter(
		Close Outline( 1 ),
		Conditional,
		Add Filter(
			columns( :Lot, :Wafer ),
			Where( :Lot == "2" ),
			Where( :Wafer == {5, 6, 7, 8} ),
			Display( :Lot, N Items( 5 ) ),
			Display( :Wafer, N Items( 6 ) )
		)
	),
	SendToReport(
		Dispatch( {}, "400", ScaleBox,
			{Legend Model(
				7,
				Properties(
					1,
					{Marker( "Dot" ), Marker Size( 12 )},
					Item ID( "inner", 1 )
				),
				Properties(
					2,
					{Marker( "Circle" ), Marker Size( 12 )},
					Item ID( "outer", 1 )
				)
			)}
		)
	)
);

[#3 · Accepted solution]

edit: 

workaroud: for shapes one can apply the same trick as for the Heatmap graph:
add another point plot to generate the additional controls outside of the wafer map