You can enter the Step module at any time during an ABAQUS/CAE session by clicking Step in the Module list located under the toolbar. The Step, Output, Other, and Tools menus appear on the main menu bar. If the current viewport contains something other than the assembly, the contents of the viewport disappear when you start the Step module.
To exit the Step module, select any other module from the Module list. You need not save your steps or output requests before exiting the module; they will be saved automatically when you save the model database by selecting FileSave or FileSave As from the main menu bar.