IDA-STEP is opening one workbench window for each XIM or STEP file.
Like most other window applications IDA-STEP has a global menu,
toolbar and a statusbar. Inside the main working area one or several
views can show up. Each view may have its own individual toolbar.
There is a wide range of possibilities on how the views can be
arranged. A fixed collection of views at dedicated positions and
sizes is called a perspective.