Global variables, global network variables (VAR_GLOBAL) and variable configurations (VAR_CONFIG) must be defined in separate objects.
If you have declared a large number of global variables, and you would like to structure your global variables list better, then you can create further variables lists.
In the Object Organizer, select the Global Variables folder or one of the existing global variables. Then execute the 'Project' 'Object Add' command. Give the object that appears in the dialog box a corresponding name. With this name an additional object will be created with the key word VAR_GLOBAL. If you prefer an object a variable configuration, change the corresponding key word to VAR_CONFIG.