Displayed Quantity should be 0 on single product field

Hi!
we use the WooCommerce Measurement Price Calculator plugin
on the Single Product page. For the shopping cart quantity we see as default value 1. I would need 0 to be displayed as default. But this default should not then also be taken over for the product change quantity in the basket. i have already tried it with a plugin. This set all quantity fields to 0. I would like to set only this field to 0 please.

Thanks a lot
Michael

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