on.restore is an event.
This routine is called when the script application is restored from its saved state in a document or when the app is pasted into a document.
It is called only if the state was saved with the application when it was previously copied to the clipboard or saved in a document. See the on.save handler.
The parameter state is the table that the on.save event handler returned.
Warning : Functionality that is not available during initialization is also not usable within on.restore. Among the functions that cannot be called are math.eval and platform.isDeviceModeRendering.
This has been introduced in TI-Nspire OS 3.0 (Changes).