This video explains how you setup stock attributes for each of your sites, for example, Minimum Level, Safe Level and Location in that site. The step by step instructions are below the video.
Steps
Go to the stock item you wish to set site specific attributes for.
You can set the following on a 'per site' basis:
Safe Level
Min Level
Location
Click Actionsfollowed by Edit Site Values.
In the popup dialog enter the values for specific to each site.