An arm assembly is provided for a chair. One embodiment enables merging of bitmaps to allow for automation of the process of switching to a different target volume on the same storage subsystem without major interruption of data recovery capability and limited interruption of host IO to the source volumes during the migration. The apparatus may further be utilized to collapse the flexible conduit for storage andor transport. Enhancement of function is useful in learning and memory. The job manager also determines order characteristics, such as priority and quality, of the print job file, rearranges job schedules, and generates a stabilizing processing execution job when stabilizing processing is necessary.