To add some structure, you can use nested levels on the Y axis:

dt = New Table( "Hex",
Add Rows( 20 ),
New Column( "Hex",
Character,
Set Values(
{"0x0EB6", "0x00E0", "0x0052", "0x0059", "0x0052", "0x0037", "0x002E",
"0x0025", "0x0C74", "0x0C6B", "0x0C5E", "0x0C55", "0x0C2E", "0x0C19",
"0x0BE7", "0x0B9A", "0x0B8E", "0x0B53", "0x0B30", "0x00B5"}
)
),
New Column( "Hex Group", Character, "Nominal", Formula( Substr( :Hex, 1, 4 ) ) ),
New Column( "decimal",
Formula( Hex To Number( Substr( :Hex, 3 ) ) )
)
);
dt << Graph Builder(
Variables(
X( :decimal ),
Y( :Hex Group, Order By( :decimal, Ascending) ),
Y( :Hex, Position( 1 ), Order By( :decimal, Ascending ) ),
Color( :Hex Group )
),
Elements( Bar( X, Y( 1 ), Y( 2 ) ) )
);