Attributes
Every string literal not starting with the $ or _ character, and not
enclosed in single quotes, is treated as an attribute name. Attributes
can be defined in extended form, that is, using the full name, or in
quick form, using only part of the name. If the name contains blank
spaces, or the name is the exact name, it must be enclosed in double
quotes.
The attributes can also be defined using the complete notation, using the name of the template and the name of the attribute. In this way, it is possible to uniquely identify an attribute, even if the same name is defined in other templates.
Examples
Density All attribute names containing Density will be referred.
"Density" All attribute names equal to Density will be referred.
Template1:Density Only attribute Density of template1 will be referred.
Attribute names are NOT case sensitive.
Always use double quotes whenever the attribute name or the template
name contain spaces (blank) or other special characters. Example:
"Tank 01"