5.2. attrAlias
An alias for an existing attribute for defined tag. It takes the form:
UserTag tagname attrAlias alias attr
As an example, the standard Interchange value tag takes a named attribute of name for the variable name, meaning that [value name=var] will display the value of form field var. If you put this line in catalog.cfg:
UserTag value attrAlias identifier name
then [value identifier=var] will be an equivalent tag.