vertical-cooperative/easy_my_coop/views/email_template_view.xml

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

    <record model="ir.actions.act_window"
            id="action_easy_my_coop_email_templates">
        <field name="name">Mail Templates</field>
        <field name="res_model">mail.template</field>
        <field name="view_type">form</field>
        <field name="view_mode">form,tree</field>
        <field name="domain">[('easy_my_coop','=',True)]</field>
        <field name="view_id" ref="mail.email_template_tree"/>
        <field name="search_view_id" ref="mail.view_email_template_search"/>
    </record>

</odoo>