1) Creator of a display 2) Display man 3) Window dresser 
• (n.) One who arrays. In some early English statutes, applied to an officer who had care of the soldiers` armor, and who saw them duly accoutered.
Ar·ray'er noun One who arrays. In some early English statutes, applied to an officer who had care of the soldiers' armor, and who saw them duly accoutered. 
royal official responsible in later medieval and early modern England for assembling military forces.