The Class Selector enables you to create a Class or work on an existing Class.
You can create Classes using this selector but you would usually create Classes in the parent Class Diagram.
You can select a Class by typing its name in the Class Name field and the name of its Subsystem in the Subsystem Name field. If the Class does not already exist you are asked if you want to create it. Wild cards are allowed in either field when searching for existing Classes.
Alternatively, click on List all and then scroll through the list until you find the Class you want. Click on the name to select it.
A selected Class is shown in reverse video (highlighted). You may highlight more than one Class if required. Pop up the selector menu and choose a command. Some commands are not available if you have highlighted more than one Class.