Mitsubishi Electric R56TB Instruction Manual page 65

If the "Match case" (<f>) is checked at this time, the capital letter and the small letter will be differentiated.
Moreover, the search direction can be specified with checking Up/Down. (<g>)
Display the message, if the character string is not found. Taps the [OK] button. (<h>)
<f>
4) Tap the [Close] button (<j>) to finish.
Advice
The row number is also the target of search.
If it edits the line of code, please close the specified screen of the search string.
The function to replace the character string is shown in "13) Replace."
<g>
<j>
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<h>