Array support for attribute set import

[Morgy93]

It would be awesome to have array support for the attribute set import.
Currently:

for any additional Attribute Group a new row has to be added
https://docs.m2if.com/38/file-structure/attributes-set-and-group-import/attribute-groups

But instead of

attribute_set_name	based_on	entity_type_code	sort_order	attribute_group_name	attribute_group_code	attribute_group_tab_group_code	attribute_group_sort_order	default_id
Bag		catalog_product	2	Product Details	product-details	basic	10	1
				Content	content

I'd love to see something like the multiple-field-delimiter and multiple-value-delimiter which exists for product import https://docs.m2if.com/38/file-structure/product-import/additional-attributes

For example:

attribute_set_name	based_on	entity_type_code	sort_order	attribute_group	attribute_group_tab_group_code	attribute_group_sort_order	default_id
Bag		catalog_product	2	name="Product Details"|code="product-details",name="Content"|code="content"|tab_group_code="advanced"	basic	10	1

[wagnert]

@Morgy93 I'll check this, but in general, it's much more complicated for most of our users/customers to create CSV files using that more or less complex data format you're requesting. For most of them, it's much easier to create a CSV file with additional columns or rows. But I'll check it and see if there is any possibility, therefore.

[Morgy93]

Really? For me that has always been some pretty weird practice.
For PHP and especially with Magento (collections and so on) I think it's rather stressful to have to build csv data like this.

Easy:

foreach ($products as $product) {
    fputcsv($handle, [
        $product->getSku(),
        $product->getName(),
        implode('|', $product->getCategoryIds()),
        ...
    ]);
}

Just one weird example which should at least show that it can get pretty complicated real quick 😁 :

foreach ($products as $product) {
    $categories = $product->getCategoryIds();
    fputcsv($handle, [
        $product->getSku(),
        $product->getName(),
        $categories[0],
        ...
    ]);
    if (count($categories) > 1) {
        foreach ($categories as $category) {
            fputcsv($handle, [
                '',
                '',
                $category,
                ...
            ]);
        }
    }
}

(After writing this I found out that it wouldn't even work like this with multiple array data .. but that should just make it even clearer 🤷‍♂ )

Just my two cents~