Ok lets say for example you want to set up wiseman as a shop.
You go into pub edit (1.3 is what i use, still remains the best in my eyes)
Find wiseman
ID 166, You'll see tabs along the top ''GFX,---,PRT,CHD,NPC''
Change the number of NPC to 6 And save.
6 will make this NPC a shop.
To get it to stand still facing the direction you want you'll need rena's map editor.