How to use the C3D27 element?

Hello, everyone!

         I want to use c3d27 element to build my model in ABAQUS. But what is disappointed is that one can only assign c3d20 element in the CAE. From the documentation, we can know that, the c3d27 element may comprised of 21 to 27 nodes. So we can make use of  c3d20 element to define  c3d27 element. However, it's boring to add at least one node to the element. Is there anyone who can give me some suggestion? Thank you in advance.

Regards