Hi, i try to work the many2many_tags widget 

I've got a custom form, with selection .

I do foreach loop in order to list my users into the selection but i want to put few values in the input, like the widget does. 

template.xml : 

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

<odoo>
  <data>
    <record id="marchepublic_form" model="ir.ui.view">

      <!-- Formulaire pour déposer une nouvelle annonce -->

      <field name="model">coopaname_helpdesk.post_form_ticket</field>
      <field name="inherit_id"  ref="coopaname_helpdesk.marchepublic"  />
      <field name="key">coopaname_helpdesk.marchepublic_form</field>
      <field name="mode">primary</field>
      <field name="arch" type="xml">
         <xpath expr="//div" position="after">
          <div id="wrap" class="oe_structure oe_empty ">
            <form action="/coopaname_helpdesk/post_form_ticket/" method="post" class=" o_form_field s_website_form form-horizontal container-fluid mt32"
                  enctype="multipart/form-data" data-model_name="monmarchepublic" data-success_page="/coopaname_helpdesk/succes/">

<div class="form-group form-field">
 <div class="col-md-3 col-sm-4 text-right">
   <label class="control-label" for="x_membre_interne" >
           Membres de l'équipe INTERNE Coopaname</label>
 </div>
 <div class="col-md-7 col-sm-8 ">
    <select id="membre_interne" name="x_membre_interne"  widget='many2many_tags' class="form-control " >
       <option value="" >Sélectionnez...</option>
       <t t-foreach="users" t-as="user" >

       <option t-att-name="x_membre_interne"  t-att-value="user.login"   >
         <t t-esc="user.login"/>
       </option>
       </t>
     </select>
 </div>
</div>

Can someone help me please ? 

Regards