A method and apparatus is used to interchange certain seating areas within a sports stadium or arena with an entertainment stage on a temporary basis to support an alternate use of the facility such as for a religious event, civic gathering, or musical concert. Loss of revenue producing seats for a concert due to poor viewing access is minimized, since none of the remaining seats are blocked from viewing the entertainment stage. The seating sections are provided in self-supporting modules or risers of approximately one hundred seats (or equivalent bench seating area). The seating sections are moved with the aid of a mobile crane and specially designed trailers. These seating sections are stored on elevated landing racks located outside of the stadium. Entertainment stage sections with equivalent "footprint" configurations are stored on these same landing racks when they are not in use in the stadium.