In the input windows for members, you select the cross‑section alignment; for example, at the upper or lower edge of the cross‑section. Next, you define the axis offset relative to the reference member as well as the reference member itself. The program automatically determines the eccentricity by means of the defined dimensions of the member cross‑sections.
The advantage of this definition is that the eccentricity is automatically adjusted if you change the cross‑sections of the members.
