Is there a complete list of global and session variables accessible using scripts?

[jkcpop]

I noticed that there is a list of some variables under Variables->Global variables and Variables->Session in the scripts guide but the guide suggests there are other variables.
For example under Program Reference->Actions->Project Settings->True Update Servers
Location:
The locations of each TrueUpdate server, for example, its URL, FTP site or local/network folder.
Tip: TrueUpdate server locations also support the expansion of session variables allowing you to change the locations dynamically at runtime.
The documentation suggests that you can access the location setting at run-time using session variables but what would the session variable name be: %location% ?

[Ulrich]

The list of predefined session variables can be found in the documentation, and you can set up additional, custom variables as needed. In Project > Session Variable, you can add new variables and set default values. Once defined, this variable can be inserted wherever needed (press Ctrl+B). Of course you can create a variable named %Location%, if you wish.