Write on settings

Hello,
I’m trying to display property lines from drone video, and I have the tracker and paint nodes figured out, but I tried to set the write on to have the lines appear and disappear, but I messed up that part and need to start over. Can anyone please advise me how to remove current write on settings and then reinstall? Thank you in advance.

In what way did you mess up? Write on settings are done with keyframes, so unless you have a version with those keyframes saved, you have to re-keyframe the write on. Or am I misunderstanding the question?