Diagnosis
You have tried to print objects. You must first mark the data modelsand entity types which you want to print.

Procedure
Mark the data models and entity types which you want to print, bypositioning the cursor on the chosen node, and choose one of the twopushbuttons explained below:
Select/Deselect node
The selected node is marked.
Select/Deselect sub-tree
The selected node and the sub-tree below it are marked.
If you want to print a data model with all its entity types and datamodels, position the cursor on the desired data model, pressthe key "Select/Deselect sub-tree" and then choose "Print objects".