Below each flowsheet window, a flowsheet log is displayed that shows messages that are logged during flowsheet manipulation and during the solution phase.
In the flowsheet options can be specified how long the long can be (maximum number of lines) and how verbose the log should be.
To empty the log, choose Clear Log from the File menu.
Errors and warnings view
As alternative to the log, the errors and warnings view can be activated instead of the log view. This will keep track of all validation and solve errors and warnings.