How to add custom link in supplier portal below the item name?

Hello Team ,

I want to add one custom link in supplier portal below the item name …when admin can create request for quotation…in that .select supplier ==>select item ==>select quality inspection template…then submit the quality inspection template…

supplier can login with his account and see the in left hand side 4 option

  1. Request for Quotations
  2. Supplier Quotation
  3. Addresses
  4. My Account

supplier can click on first option then he can able to see the request for quotation…select one of them then see the detail description of that request for quotation…here i want to add one link when supplier can click on that link then one popup is open in that popoup show the quality inspection template selected by while createing the request for quotation …can any one help me for the same

Thanks