You can overwrite package components for the selected instance. This is useful to keep the nonfile data resources of each instance isolated.
For example, an INI file is linked to an existing component. If this component is the same (same component GUID) from an instance to another, the INI file will be removed only after all instances are removed. To avoid this, add the appropriate component to "Overwrite Components" list. A new component GUID will be automatically generated when a new instance is created.
Use the [ Add... ] and [ Remove ] buttons to select/remove them.