The following macros are supported for Text type:
|%(TIME(<time format>))||Current GM time where <time format> is a format string similar to the format string of Time type. All time tags described in Stamp element properties are supported, but they are static and always return current GM time.|
|%(USERNAME)||The name of the user who obtains the stamp.|
|>%(USERDESCRIPTION)||>The description of the user who obtains the stamp.|
|%(NAME)||The name of the stamp.|
|%(DESCRIPTION)||The description of the stamp.|
There is no possibility to create your own macros.