Hi guys,
i am writing the final degree thesis, and I have a little problem.
I must make comments at bottom of page and how it is used to insert a line to divide the writing, by the comment. The line formed by repeating this symbol "-"then hit enter and transforms it to line. I want to know, after have created it and after writing, how can I delete it?
I tried to any way, but I can't select, there are no icons and I can't in any way to extirpate from the document.

Can you please help me?

Thanks.