Mitsubishi Electric R56TB Instruction Manual page 67

Display the message, if the character string to search is not found. Tap the [OK] button. (<g>)
<g>
4) Tap the [Close] button (<h>) to finish.
<h>
Advice
Only last one operation is valid to undo. All cannot be returned if two or more operations have been mistaken. In
this case, it is necessary to finish program edit, without saving and to do over edit from the start.
To prevent such a situation, we recommend you to copy the program before edit beforehand and to reserve
separately.
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