an example can be found on AMOSPro_Tutorial:Tutorials/Procedures_2.AMOS
Defines a list of GLOBAL variables that can be accessed from anywhere inside your AMOS Professional program.
Global variable list
You can also define your global variables using STRINGS which can contain the wildcards "*" or "?".
"*" means "Use any group of characters up to the next letter or number"
"?" means "Use any single character in the current position"
Only string constants can used for this purpose.