It would be nice to have some more options in the ERD-tool:
Mostly the schema name is not so important maybe not even needed to read and understand a diagram.
For this an option to hide the schema name completely for all table boxes would be nice.
To save space, an option to show the tables' names directly in the title-bar of their boxes. If schema names are not hidden, there could be shown the full qualified name. - Saves 1 or 2 lines for each table.