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<!-- Remove ALL variant images -->
<mvt:foreach iterator="product" array="products">
    <mvt:item name="toolkit" param="variantarray|vcount|l.all_settings:product:code" />
        <mvt:foreach iterator="variant" array="variants">
            <mvt:item name="toolkit" param="customimagec|gal_images|l.all_settings:variant:variant_code|" />
            <mvt:if expr="g.gal_images">
                <mvt:foreach iterator="image" array="toolkitadditionalimages">
                    <mvt:if expr="l.settings:image:imagetype:code NE 'main'">
                        <ProductImage_Delete product_code="&mvt:variant:variant_code;" filepath="&mvte:image:image:image;" />
                    </mvt:if>
                </mvt:foreach>
            </mvt:if>
        </mvt:foreach>
</mvt:foreach>

<!-- Add to Main == make this first -->
<mvt:foreach iterator="product" array="products">
    <mvt:item name="toolkit" param="variantarray|vcount|l.all_settings:product:code" />
        <mvt:foreach iterator="variant" array="variants">
            <mvt:item name="toolkit" param="customimagec|gal_images|l.all_settings:variant:variant_code|" />
            <mvt:if expr="g.gal_images">
                <mvt:foreach iterator="image" array="toolkitadditionalimages">
                    <mvt:if expr="l.settings:image:imagetype:code EQ 'main'">
                        <ProductImage_Add product_code="&mvt:variant:variant_code;" filepath="&mvte:image:image:image;" imagetype_code="main" />
                    </mvt:if>
                </mvt:foreach>
            </mvt:if>
        </mvt:foreach>
</mvt:foreach>