analytic_secondaxis_view.xml

<openerp>
    <data>
        
        #---------------------------------------------------------------------------------------------------------
        #   Add activity on project_view
        #---------------------------------------------------------------------------------------------------------
        <record id="edit_project" model="ir.ui.view">
            <field name="name">project.project.form</field>
            <field name="model">project.project</field>
            <field name="inherit_id" ref="project.edit_project"/>
            <field name="type">form</field>
            <field name="arch" type="xml">
                <page string="Notes" position="after">
                    <page string="Activities">
                        <field colspan="4" name="activity_ids" nolabel="1"/>
                    </page>
                </page>
            </field>
        </record>
        
        #---------------------------------------------------------------------------------------------------------
        #   Task work
        #---------------------------------------------------------------------------------------------------------
        <record id="view_task_work_form" model="ir.ui.view">
            <field name="name">project.task.work.form</field>
            <field name="model">project.task.work</field>
            <field name="type">form</field>
            <field name="inherit_id" ref="project.view_task_work_form"/>
            <field name="arch" type="xml">
                <field name="user_id" select="1" position="after">
                    <field name="activity" />
                </field>
            </field>
        </record>

        <record id="view_task_work_tree" model="ir.ui.view">
            <field name="name">project.task.work.tree</field>
            <field name="model">project.task.work</field>
            <field name="inherit_id" ref="project.view_task_work_tree"/>
            <field name="type">tree</field>
            <field name="arch" type="xml">
                <field name="user_id" position="after">
                    <field name="activity" />
                </field>
            </field>
        </record>
        
        #---------------------------------------------------------------------------------------------------------
        #   Task 
        #---------------------------------------------------------------------------------------------------------
         <record id="view_task_form2" model="ir.ui.view">
                <field name="name">project.task.form</field>
                <field name="model">project.task</field>
                <field name="inherit_id" ref="project.view_task_form2"/>
                <field name="type">form</field>
                <field name="arch" type="xml">
                    <xpath expr="/form/notebook/page[@string='Information']/field[@name='work_ids']" position="replace">
                        <field colspan="4" name="work_ids" nolabel="1" attrs="{'invisible':[('state','in',['draft'])],'readonly':[('state','=','done')]}" >
                            <tree string="Task Work" editable="top">
                                <field name="name" />
                                <field name="hours" widget="float_time" sum="Spent Hours"/>
                                <field name="activity" context="{'project_id':parent.project_id, 'from_task':True}"/>
                                <field name="user_id" />
                                <field name="date" />
                            </tree>
                        </field>
                    </xpath> 
                </field>
         </record>
        
    </data>
</openerp>