The VisualBots object model provides a way for you to define your own Bot or Cell properties using the Tag object. A Tag object consists of a user-defined Name and Value. Any number of Tag objects can be defined with the Add method of the Tags collection object. Tag objects can only be created at the Bots and Cells collection object level, insuring that all Bots and all Cells share the same Tag property names. You can manipulate Tag values at both the individual and collection levels. Several methods such as FillColorBy will take the name of your custom properties as an argument.