Group shearwalls that do not provide 1/6 dimension ratio in shearwall groups and will be included in the shearwall head area are defined as " Short/head shearwall". By selecting the shearwall parts connected to the polygon shearwalls (group shearwalls), selecting the " Short/head shearwall " option in the shearwall properties, giving the same shearwall group name, the group shearwall is added as the head region.