<odoo>
    <!-- bind to all views -->
    <record id="act1" model="ir.actions.act_window">
        <field name="name">Action 1</field>
        <field name="res_model">tab.a</field>
        <field name="binding_model_id" ref="model_tab_a"/>
        <field name="binding_view_types"></field>
    </record>
    <!-- bind to form views -->
    <record id="act2" model="ir.actions.act_window">
        <field name="name">Action 2</field>
        <field name="res_model">tab.a</field>
        <field name="binding_model_id" ref="model_tab_a"/>
        <field name="binding_view_types">form</field>
    </record>
    <!-- bind to default views (list, form) -->
    <record id="act3" model="ir.actions.act_window">
        <field name="name">Action 3</field>
        <field name="res_model">tab.a</field>
        <field name="binding_model_id" ref="model_tab_a"/>
    </record>

    <record id="r1" model="ir.actions.act_window">
        <field name="name">Record 1</field>
        <field name="res_model">tab.b</field>
        <field name="binding_model_id" ref="model_tab_b"/>
        <field name="binding_view_types"/>
    </record>
    <record id="r2" model="ir.actions.act_window">
        <field name="name">Record 2</field>
        <field name="res_model">tab.b</field>
        <field name="binding_model_id" ref="model_tab_b"/>
        <field name="binding_view_types">form</field>
    </record>
    <record id="r3" model="ir.actions.act_window">
        <field name="name">Record 3</field>
        <field name="res_model">tab.b</field>
        <field name="binding_model_id" ref="model_tab_b"/>
    </record>
</odoo>