Overrides can be used to change the caption on a single label, button or tab on a selected screen. By default Workbench requires specific text to be translated only once within a single context, and it uses that translation everywhere that exact text is used in the application within that context.
Overrides exist to allow this behaviour to be changed for a single instance, in case the default behaviour is not appropriate usage of a translation.
To use an override, simply click the 'Override' check box for the label, button or tab, and enter the 'Translation Text' and 'Translation Long Text' as required.