multi_store/views/res_users_view.xml

<?xml version="1.0"?>
<openerp>
    <data>
        <!-- Form -->
        <record id="view_journal_security_users_form" model="ir.ui.view">
            <field name="name">journal_security.users.form</field>
            <field name="model">res.users</field>
            <field name="inherit_id" ref="base.view_users_form"/>
            <field name="arch" type="xml">
                <field name="company_id" position="after">
                    <label for="store_id" class="oe_edit_only" groups="multi_store.group_multi_store"/>
                    <field name="store_id" context="{'user_preference': 0}" groups="multi_store.group_multi_store"/>                    
                </field>
                <group string="Allowed Companies" position="after">
                    <group string="Allowed Stores" groups="multi_store.group_multi_store">
                        <field name="store_ids" nolabel="1" widget="many2many_tags"/>
                    </group>
                </group>
            </field>
        </record>

        <record id="view_journal_security_user_preference_form" model="ir.ui.view">
            <field name="name">journal_security.user.preference.form</field>
            <field name="model">res.users</field>
            <field name="inherit_id" ref="base.view_users_form_simple_modif"/>
            <field name="arch" type="xml">
                <field name="company_id" position="after">
                    <field name="store_id" readonly="0" contest="{'user_preference':0}" options="{'no_create': True}" groups="multi_store.group_multi_store"/>                
                </field>
            </field>
        </record>
        
    </data>
</openerp>