RISA News has published an article about automating the application of notional loads to a RISA-3D model:
In RISA-3D you can automatically apply notional loads to your structure to comply with your steel code (such as AISC 360). Notional loads take into account a building’s actual out-of-plumbness by adding de-stabilizing lateral loads. The AISC 360 recommends either 0.2% or 0.3% of the vertical loads be applied at each floor level.
You can quickly add these loads to your model by going to the Insert menu and selecting Notional Loads.