Q5.30: Regarding vertical frame members, are we allowed to place horizontal spacers connecting two vertical members, ensuring adequate spacing between vertical members, even if those horizontal spacers are not aligned with floor planes (i.e. placed at the midspan of the columns rather than at a defined floor level)

A: Yes, you are allowed to place horizontal members between vertical members at any elevation, as long as you ensure that the minimum vertical member spacing requirement and all frame member requirements are met.  Also, remember to check that the horizontal members do not cut off access to any rentable floor area (all rentable areas should be accessible via access points defined in Section 5.6.c of the Official Rules).