Answer:
The term "shear panel" indicates that the translational spring, which is created along the beam length by means of the shear panel type including the corresponding parameters, is smoothed; see Image 01.
This is also the case of the "Bracing" shear panel type, so that the mode shape always seems to be arbitrary at this location; see Image 02.
In order to obtain the exact results, we recommend manually defining the lateral support using a nodal support according to the general method (Image 03) or defining the effective lengths according to the equivalent member method, including intermediate lateral restraints, if necessary. Thus, a mode shape with the visible lateral restraint is created in the mid-span (Image 04).
