I'm supposed to modify the registration interface.

In  addons/auth_signup/views/res_config_settings_views.xml we can see code as follow:

<div class="text-center oe_login_buttons pt-3">
    <button type="submit" class="btn btn-primary btn-block"> Sign up</button>
    <a t-attf-href="/web/login?{{ keep_query() }}" class="btn btn-link btn-sm" role="button">Already have an account?</a>  
    <div class="o_login_auth"/>
</div>

Then I add a agreement link to show my agreement:

  <a t-attf-href="/useragreement" class="btn btn-link btn-sm" role="button">Customer Agreement</a>

So is there any way to add a check box,only customer checked the box can they clicked the "Sign up" button?Just  like an agreement is required before installing a software.

Thanks