New Assignment block in Opportunity Screen

Hi Gurus,

We have a requirement to create a new assignment block in Opportunity screen.

Can somebody tell me if it is possible to create an assignment block that has link to a webdynpro page??

If yes please provide with the steps to be followed for creation of new assignment block as well as linking the webdynpro page with CRM UI.

Thanks in Advance

Regards,

Divya