Promotes a scratch datafile to the main data area on the system computer, assigning it a run number in the process.
2=to: 2!:}Format: PROMOTE <filenum>
2=to: 2!:}Filenum: The number of the scratch file
2=to: 2!:}Examples : PROMOTE 5
2=to: 2!:}Comments: The system will report the allocated run number. However, since the headers for the observation are collected when the data is originally taken, the run number will not appear in the headers.