Large Displacement Problem

I have a question about how we should set instruction in large displacement contact problem.

 

Group → TRACK → FINITE

          →DISCRET → N2S

 

EXPERTNL→ AUTO

 

CNTSTB→ YES

 

My solution is to used this instructions now.

 

Do I forget about the large displacement problem?

 

And why N2S not supported nonlinear material and geometric nonlinearity?

 

In help it write this → Additionally, only sliding contact without friction is currently supported. Also, no nonlinear material and geometric nonlinearity are allowed.