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I'm working with an entityform type that has a field with unlimited input values, so with the default button "Add another" I can add multple values for a field.

I'd like to fix this number of values, maybe with a get or post value, so I can preselect a specific number of values and then limit user to fill a specific number of fields.

Example: first select how many items to order --> user selects 4 items --> user must fill 4 values of the same field and user can't add more or less then 4 items.

Do you think it's possible with drupal modules?

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After hours of searches I found a solution: https://www.drupal.org/node/2868353

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