Group Products Codes together into new array

example.xml

<mvt:foreach iterator="group" array="basket:groups">
	<mvt:comment> <!-- Build Dynamic Array --> </mvt:comment>
		<mvt:if expr="miva_array_search( l.settings:new_array, 0, l.item, 'l.item:code EQ l.settings:group:code' )">
			<mvt:assign name="l.item:quantity" value="l.item:quantity + l.settings:group:quantity" />
		<mvt:else>
			<mvt:assign name="l.success" value="miva_array_insert( l.settings:new_array, l.settings:group, -1 )" />
		</mvt:if>
	 <mvt:comment> <!-- Build Dynamic Array --> </mvt:comment>
</mvt:foreach>

<mvt:foreach iterator="item" array="new_array">
	&mvt:item:code; // Total: &mvt:item:quantity;
</mvt:foreach>