The current metri is a preview paramter for the Stages Data Set.
For some function like pkit.getCurrentProject or some global variables like currentMetric the BIRT Designer need a preview location in the Stages Server.
Note: The current metric is only used by the BIRT Designer and not by the Stages server.
So the current metric has to point to an existing Stages metric element. The syntax is based on the TWIKI notation in Stages.
[[[<parentprocess|processname>:metric]<parentelement]]
or
[[[<processname>:metric]<targetelement>|]]