This section contains a list of custom, user-defined variables that can be
used in WBSP files, in form:
These variables can be read using functions $WBRV and $WBRRV.
The user-defined variables in UserData section can contain WhizBase tags and functions, same as any WBSP system variable (variables starting with WB_).
Here is an example of UserData section in default.inc file in virtual hosts
Later these variables can be accessed from your WBSP files like this:
Or like this: