Modeling Pushover of Masonry Wall

[SBCP8]

Hi all, I am trying to model a masonry wall that will give us another point of reference for a lab test we conducted. We used incremental displacements to fail the wall and collected data to build a hysteresis curve. I want to use SeismoStruct to model the wall properties and impose the same loading as we have done in lab. When I run my model, however, I get a linear response with no siginificant results. What is wrong here?

[seismosoft]

Can it be that you have the Run with Linear Elastic Properties checked (Program Settings>Analysis tab)?
If this is not the case, problably the structural deformations are very small and the response is indeed linear.
Seismosoft support

[jacob.alex]

Hi
Could you please help me with respect modelling the wall. I am unable to provide the udl on the wall in addition to the lateral load.