Where did the sustain pedal line go?

I would like to add a signature of a sustain pedal to the sheet music but I can't find it. I've used it several times before in the past but it seemed to have magically dissapeared; I know it's in the 'lines' section and I have reset it to the state in which it was when I have downloaded it but there still isn't a sign of it, neither in the 'lines', neither anywere else. I've even tried copying it from a note from another program and pasting it to that one and it didn't work.

Any suggestions on what to do about it?

Note: It's not at the section 'more'.