SECTION./MOS
DEFINE/MOS [object] [mos] [windows] [thresh] [wind] [xbin] [centmet]
	searches for objects and defines sky regions
SECTION./SLIT
DEFINE/SLIT mode [slit] [low,upp] [offset] [mos]
	Creates or updates mos slitlets table
SECTION./WIND
DEFINE/WINDOW [mode] [sequence] [obj] [sky] [mos] [window]
	updates object and sky regions
