The option is used to determine additional code parameters defining values of displacements (limit displacements). It is activated by pressing the Service button located in the Member definition - parameters dialog box.
It is possible to define limit displacements (member deflections in the directions X and Y, node displacements in the directions X and Y) and, additionally, to decide - while determining the limit deflections of a member - whether the member is a cantilever. Options in the lower part of the dialog box allow defining parameters of a member with camber: