Hi,

You can create a new filter option in filters using the code:

<record id="menu_website_store_search" model="ir.ui.view">

    <field name="name">website.store.search</field>

    <field name="model">website.store</field>

    <field name="arch" type="xml">

        <search string="Search Tips">

            <filter name="is_published" string="Published" domain="[('is_published', '=','True')]"/>

        </search>

    </field>

</record>

After that we needs to makes that filter is default one using the code:

<record id="website_store" model="ir.actions.act_window">

    <field name="name">Website Store</field>

    <field name="type">ir.actions.act_window</field>

    <field name="res_model">website.store</field>

    <field name="view_mode">tree,form</field>

    <field name="context">{'search_default_is_published':1}</field>

    <field name="help" type="html">

        <p class="o_view_nocontent_smiling_face">

            Create a new record!

        </p>

    </field>

</record>

Regards