WooCommerce Coupons: I need a way to use “Limit usage to X items” but globally/accumulative

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Explained with an example, 4 units is the limit (100% discount):

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Client A: Buy 4 units. Once the coupon is applied, 4 units are free. In the future, if he wants to buy another one, it will cost the normal price.

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Client B: Buy 2 units. Once the coupon is applied, the units are free. In the future, the client can buy 2 more units with the 100% discount.

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Client C: Buy 1 unit. If the coupon is applied, the unit is free. In the future, he can buy until 3 units for free

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Any way to make it?

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