flectra/addons/website/views/ir_actions_views.xml

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

        <record model="ir.ui.view" id="view_server_action_form_website">
            <field name="name">ir.actions.server.form.website</field>
            <field name="model">ir.actions.server</field>
            <field name="inherit_id" ref="base.view_server_action_form"/>
            <field name="arch" type="xml">
                <data>
                    <xpath expr="//field[@name='state']" position="after">
                        <field name="website_published"
                            attrs="{'invisible': [('state', '!=', 'code')]}"/>
                        <field name="xml_id" invisible="1"/>
                        <field name="website_path"
                            attrs="{'invisible': ['|', ('website_published', '!=', True), ('state', '!=', 'code')]}"/>
                        <field name="website_url" readonly="1" widget="url"
                            attrs="{'invisible': ['|', ('website_published', '!=', True), ('state', '!=', 'code')]}"/>
                    </xpath>
                </data>
            </field>
        </record>

        <record model="ir.ui.view" id="view_server_action_tree_website">
            <field name="name">ir.actions.server.tree.website</field>
            <field name="model">ir.actions.server</field>
            <field name="inherit_id" ref="base.view_server_action_tree"/>
            <field name="arch" type="xml">
                <xpath expr="//field[@name='model_id']" position="after">
                    <field name="website_url"/>
                </xpath>
            </field>
        </record>

        <record model="ir.ui.view" id="view_server_action_search_website">
            <field name="name">ir.actions.server.search.website</field>
            <field name="model">ir.actions.server</field>
            <field name="inherit_id" ref="base.view_server_action_search"/>
            <field name="arch" type="xml">
                <xpath expr="//field[@name='state']" position="after">
                    <filter string="Website" name="website"
                        domain="[('website_published', '=', True), ('state', '=', 'code')]"/>
                </xpath>
            </field>
        </record>

    </data>
</flectra>