On the Desk Customer Portal, can you link to a webform built in Creator

On the Desk Customer Portal, can you link to a webform built in Creator

Several questions regarding Desk:

  1. If I use Creator to build a new ticket template for the customer to access from our portal, how do I link to the form from the Customer Portal in Desk?
  2. Same question again only with the Adv Webform.  Is there a way to disable the pre-existing ticket template on the portal and have customer requests go straight to an advanced webform to submit a ticket?
  3. Is it possible to completely remove the Sign-In from the customer portal?  I know how to modify the HTML so the Signin/out text doesn't show but is there a better way?  Because every time I modify that HTML to customize our portal it won't let me make other changes until I set it back to the default.  We plan to use remote authentication and do not want our customers to have to login again.

Thank you
Kristy