Multistory sprinkled building with corridor ~elevator lobby from elevator that has openings into office area, multipurpose area: No door. A situaltion where the elevator is in the middle and the exit at each end of the building with circular access to both around the elevator lobby. Can bead strings (1960's hippy decoration} be hung in one of the openings? Considering as drapes and only ok if that portion of the opening is not a part of the egress path. Otherwise, just bad taste will prevail unless somebody here can direct me to IBC reference preventing ceiling hung bead stings in openings. Thankyou.