Personalisation supplier registration redwood, not able add dynamic content ?

While doing personalisation in Supplier Registration Redwood page, we are in the process of adding a footer in supply details page of new Supplier Registration Redwood VBCS page. While doing the same we tried to add Dynamic container in the same page and then add segment to this container, but all the dynamic components are grayed out and not able to drag and drop anything into the main page.

Please let us know how to resolve this issue.