odoo-survey-addons/survey_input_statistics/views/survey_user_input.xml

<?xml version="1.0" encoding="utf-8"?>
<odoo>

  <record id="survey_user_input_view_search" model="ir.ui.view">
    <field name="name">survey_input_statistics survey.user_input search</field>
    <field name="model">survey.user_input</field>
    <field name="inherit_id" ref="survey.survey_user_input_view_search" />
    <field name="priority">26</field>
    <field name="arch" type="xml">
      <filter name="not_test">
        <separator />
        <filter name="shared_invite" string="Shared invite" domain="[('invite_token', '!=', False)]" />
        <filter name="free_filling" string="Free filling" domain="[('invite_token', '=', False)]" />
      </filter>
      <filter name="group_by_partner" position="after">
        <filter name="by_state" string="State" domain="[]" context="{'group_by': 'state'}" />
      </filter>
    </field>
  </record>

</odoo>