A layout is the diagram plus the associated editors: relational data, sql, and query builder. Multiple layouts can be created. They will be saved in the project file.
Relational Data Browse and Editor
Relational Data Browse is one module inside DbSchema useful for exploring and editing table data by keeping track of the foreign keys between the tables.
Query Builder
Visual oriented query builder with different join types, group by, etc.
Sql Editor
Autocomplete-enabled SQL editor with groovy support, script execution, graphical explain plan, etc.
Schema Documentation
DbSchema can generate web-compatible HTML5 documentation including the interactive layout images ( *.svg ). By moving the mouse over the tables or columns comments can be read.