Advanced options - F XS_FILTER_SEPARATOR_CHARXS_FIRMXS_FIX_FRAME_OF_FIXED_MODELVIEWXS_FLAT_PREFIXXS_FLAT_THICKNESS_TOLERANCEXS_FLAT_TOLERANCEFLEXLM_TIMEOUTXS_FRACTION_HEIGHT_FACTORXS_FS_POSTFIX_FOR_MERGED_PART_MARK