When the cursor on the right line code, press F9, a red line will apear, this
is the code break.
You can remove it by pressing F9 again on the same point.
When the application will be closed, all the break points will be removed.
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Another way will be, to write the word
Stop
Where you want it to stop, the problem with this method, when the
application is closed the stop will remain, so you have to remember to remove
it