How to change the default 3 instances showing in a InlineModelAdmin object in Django -

When you define InlineModelAdmin class in Django , defaults The model shows 3 models in the admin page of the model, which has the foreign key for the model I defined in the model.

How can I change it?

I just do not want to use the max_num field, because when using it, I can not add another instance in the page.

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How to change the default 3 instances showing in a InlineModelAdmin object in Django -

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