To configure this module, you need to:

#. Go to *Settings > Printing > Labels > ZPL II*
#. Create new labels
#. Import ZPL2 code
#. Use the Test Mode tab during the creation

It's also possible to add a label printing wizard on any model by creating a new *ir.actions.act_window* record.
For example, to add the printing wizard on the *product.product* model ::

    <act_window id="action_wizard_purchase"
      name="Print Label"
      src_model="product.product"
      res_model="wizard.print.record.label"
      view_mode="form"
      target="new"
      key2="client_action_multi"/>