Attributes stock

is there a possibility to have stock management on attributes level?
I have different variable products (bags) where they can select an option (attribute), in my case a bow in different colours.
If i enable stock management on variation level the stock is not synchronized if they select the same attribute in another variabel product.
I’ve also tried with bundled product but in this case it’s not a solution because it’s really part of the product and not an optional product.

Thanks for your help

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