How to activate nonlinear properties in General Link?

Question:

How to activate non-linear properties in General Link? 



Answer:
If you use 'Element' type on 'Application Type', you can reflects the nonlinear behavior of the element by renewing the element stiffness matrix in the process of analysis.
And, if you use 'Spring' type on 'Property Type', you can apply inelastic hinge properties by clicking 'Inelastic Hinge Properties' to reflects the nonlinear behavior of the element.
Therefore, to activate nonlinear properties which you mentioned, you should use 'Force' for 'Application Type'.