How can objects be aligned with a central line?

[#1]

How can the two objects in the following JSL be aligned along their respective central lines as shown in the image?

New Window( "Test", 

	Text Box( "Test Center alignment" ),
	CB = Combo Box( {"1", "2", "3", "4"}, );
);

 

[#2 · Accepted solution]

You can use H/V List Box(align("center")) or H/V Center Box

Names Default To Here(1);

nw = New Window("Test",
	V List Box(
		align("center"),
		Text Box("Test Center alignment"),
		CB = Combo Box({"1", "2", "3", "4"})
	)
);

Display Functions