supplier company in checkout


I have 2 question::

  1. how can I disable the appear of the supplier company in the checkout page (in the last step)?
  2. In “addons”—>supplier , what is the “Multiple shipping method selectboxes”? I read about it in the manual and didn’t understand. I understood that it will show or disable the select box with all the possible shipping methods to all suppliers , but where all my suppliers can see this box? where is it appear to them?