HEIDENHAIN iTNC 530 Service Manual page 576

If you want to delete from right to left :
Deleting records
and marks
If you want to delete from left to right:
If you have deleted a complete line:
30 – 576
Place the cursor with the arrow key in the next line. --> The modified line is
structured.
Press this key.
Press the CE key.
Caution
Do not press the DEL key if you want to delete individual letters, words, numbers, etc.
Press DEL to delete a complete line!
Press the END key. --> The machine parameter editor generates the deleted parameter again
and asks you for information.
Enter the correct value (if required, look it up in the original MP list).
HEIDENHAIN Service Manual iTNC 530