The files were created as examples of files used to change drive and
directories and switch back. This text is an example of a text file
display using the $ parameter to redisplay the previous screen when
done. While other methods can be used, this is an example of overwriting
the message within the box with a temporary message, then redisplaying the
original message. The H option was previously used to save the screen before
the YOU MUST PRESS A KEY message was displayed. It is then redisplayed as it
was previous to the message with the R option. This is possible because the
D option with the $ parameter uses a different buffer area for saving the
screen. Otherwise the screen saved by the H option would not be available.
Each time The H option is used, it overwrites the screen last saved. The R
option can be used many times to redisplay the last screen saved to the H area.