odoo/addons/project_gtd/project_gtd_view.xml

<?xml version="1.0" ?>
<openerp>
    <data>
    <record model="ir.ui.view" id="view_gtd_context_tree">
        <field name="name">project.gtd.context.tree</field>
        <field name="model">project.gtd.context</field>
        <field name="type">tree</field>
        <field name="arch" type="xml">
            <tree string="Context">
                <field name="sequence" invisible="1"/>
                <field name="name"/>
            </tree>
        </field>
    </record>
    <record model="ir.ui.view" id="view_gtd_context_form">
        <field name="name">project.gtd.context.form</field>
        <field name="model">project.gtd.context</field>
        <field name="type">form</field>
        <field name="arch" type="xml">
            <form string="Context">
                <field name="name"/>
                <field name="sequence"/>
                <field name="project_default_id"/>
            </form>
        </field>
    </record>
    <record model="ir.actions.act_window" id="open_gtd_context_tree">
        <field name="name">Contexts</field>
        <field name="res_model">project.gtd.context</field>
    </record>

    <menuitem name="Time Management" id="menu_open_gtd_time" parent="project.menu_definitions" groups="group_project_getting"/>
    <menuitem name="Contexts" id="menu_open_gtd_time_contexts" groups="group_project_getting" parent="menu_open_gtd_time" action="open_gtd_context_tree"/>

    <record model="ir.ui.view" id="view_gtd_timebox_tree">
        <field name="name">project.gtd.timebox.tree</field>
        <field name="model">project.gtd.timebox</field>
        <field name="type">tree</field>
        <field name="arch" type="xml">
            <tree string="Timebox">
                <field name="sequence" invisible="1"/>
                <field name="name"/>
                <field name="icon"/>
            </tree>
        </field>
    </record>

    <record model="ir.ui.view" id="view_gtd_timebox_form">
        <field name="name">project.gtd.timebox.form</field>
        <field name="model">project.gtd.timebox</field>
        <field name="type">form</field>
        <field name="arch" type="xml">
            <form string="Timeboxes">
                <separator string="Timebox Definition" colspan="4"/>
                <field name="name"/>
                <field name="sequence"/>
                <field name="icon"/>
            </form>
        </field>
    </record>

    <record model="ir.actions.act_window" id="open_gtd_timebox_tree">
        <field name="name">Timeboxes</field>
        <field name="res_model">project.gtd.timebox</field>
        <field name="view_type">form</field>
        <field name="view_mode">tree,form</field>
        <field name="view_id" ref="view_gtd_timebox_tree"/>
    </record>

    <menuitem name="Timeboxes" id="menu_open_gtd_time_timeboxes" parent="menu_open_gtd_time" action="open_gtd_timebox_tree"/>
    <record model="ir.ui.view" id="project_task_tree">
        <field name="name">project.task.tree.timebox</field>
        <field name="model">project.task</field>
        <field name="type">tree</field>
        <field name="inherit_id" ref="project.view_task_tree2" />
        <field name="arch" type="xml">
            <field name="remaining_hours" position="after">
                <field name="timebox_id" groups="project_gtd.group_project_getting" invisible=" not context.get('set_visible',False)"/>
                <button name="prev_timebox" type="object" icon="gtk-go-back" string="Previous" states="draft,pending,open" groups="project_gtd.group_project_getting" invisible=" not context.get('set_visible',False)"/>
                <button name="next_timebox" type="object" icon="gtk-go-forward" string="Next" states="draft,pending,open" groups="project_gtd.group_project_getting" invisible=" not context.get('set_visible',False)"/>
            </field>
        </field>
    </record>

    <record model="ir.ui.view" id="project_task">
        <field name="name">project.task.form.timebox</field>
        <field name="model">project.task</field>
        <field name="type">form</field>
        <field name="inherit_id" ref="project.view_task_form2" />
        <field name="arch" type="xml">
            <field name="progress" position="after">
                <newline/>
                <field name="context_id" select="2" widget="selection" groups="project_gtd.group_project_getting"/>
                <field name="timebox_id" select="1" groups="project_gtd.group_project_getting"/>
                <button name="do_reopen" states="done,cancelled" string="Reactivate" type="object" icon="gtk-convert" help="For reopening the tasks" invisible="not context.get('set_visible',False)"/>
                <newline/>
            </field>
        </field>
    </record>
    <record id="view_project_task_tree2" model="ir.ui.view">
        <field name="name">Tasks</field>
        <field name="model">project.task</field>
        <field name="type">tree</field>
        <field name="inherit_id" ref="project.view_task_tree2"/>
        <field eval="2" name="priority"/>
        <field name="arch" type="xml">
             <field name="name" position="after">
                <field name="planned_hours" widget="float_time" invisible="not context.get('set_visible',False)"/>
             </field>
        </field>
    </record>
    </data>
</openerp>