multiple combination products

[Ponti17]

Goodmorning everyone*,

I'll explain my need: I should make sure, for products with multiple color combinations, to allow a sale in multiples that, however, includes one of all colors. For example: a shirt with three color combinations (red, black, yellow). I should sell in multiples of three, so 3,6,9 etc with the sale of 1 red, 1 black 1 yellow - 2 red, 2 black, 2 yellow - 3 red, 3 black, 3 yellow etc.

Is there a free or paid module that allows you to do this?

I cannot separate the products because in a multistore the same products will be sold individually and in any case it would be too long a management job.

Thanks Stefano