Slide sub-object names appear in the drop-down menu of the Toolbar when they are clicked. However, the Name property for the sub-object does not appear in the Property Pages - it must be edited via the Properties window. To do this, click the sub-object you want to rename, then select Properties from the View menu. At the top of the Properties window is the Name property.
Renaming sub-objects is a good practice when they are used for logging a response (e.g., having the subject click a sub-object as their response) or for eye tracking with the E-Prime Extensions for Tobii. Like all other objects in E-Prime, it is strongly recommended that you use descriptive names for sub-objects so that they are easily identified in your data file. This not only helps you, but also any colleagues you share your data with.
More information can be seen in the following video:
SAMPLE: Response Areas for Mouse Input