hey there
okay so, you place the vending presets in the "VendingPresets" folder inside of your rust edit folder. make sure to do this BEFORE you place it on your map and with rustedit not open. make sure to edit the vending presets inside of rustedit to your servers needs.
with the map file that is for you to edit the prefab to your liking if you do want any edits at all on it. then place that on your map. do not break the prefab provided or the one you make it will disconnect some io. if you dont want any edits on it then you can just ignore the map file and use the prefab provided.