odoo/addons/event_project/event_wizard.xml

<?xml version="1.0" ?>
<openerp>
    <data>
        <wizard string="Project"
            model="event.event"
            name="event.project"
            id="event_wiz"
            menu="False"/>

        <wizard
            string="Tasks"
            model="event.event"
            name="wizard_event_tasks"
            id="wizard_event_task"/>


    </data>
</openerp>