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Touch "NEW" button. Remaining operation is the same as 6.1 Edit Program.

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Touch "OPEN" button. It will show the file opening dialog.

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Rotate the knob to select a file.

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Press key 1 to open the selected file.

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Press key 2 to quit.

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Use the keyboard to enter and search for a certain filename.

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If there is a USB disk, touching the USB button could change directory to the USB disk.

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Touch "SAVE AS" button. It will show the file saving dialog.