If you are looking to do a shear wall design, you need to model it using a surface entity.
You can find an example on shear wall modeling and design in the folder
The file name is
In case you haven't looked up this topic in the Technical Reference manual, here is a summary of the relevant sections
Surfaces Incidences - 5.13.3
Openings in surface - 5.13.3
Local Coordinates system for surfaces - 1.6.3
Specifying sections for stress/force output - 5.13.3
Property for surfaces - 5.21.2
Material constants - 5.26.3
Surface loading - 184.108.40.206
Stress/Force output printing - 5.42
Shear Wall Design - 3.8.2, 5.54
In spite of what you have said, I would like to add that RAM Concrete is a better choice than STAAD for shear wall design.