The OpenModelica Docu mentions that it is possible to "Enables valid modelica output for flat modelica."

This sounds interesting but is not very specific in terms what to expect as output.

After applying --modelicaOutput=true as simulation flag in OMEdit and simulating a model I expected to get the flattened model as .mo file of created in the OMEdit work directory.

Is there anything wrong with my statement, is this feature disabled or what else is this flag doing?