black marks on tiers

Hi,

when trying to zoom in to see voice data (wav) I accidentally clicked something that marked black sings on tiers and I can’t find how to remove them.
How do I remove them?
I have print screen picture but I didn’t find a field to attach it here.
Thanks,
Hallel

Hello, yes this is a bit vague, it would be good to see what you mean.
Could you upload your image somewhere else and paste the link to it here in the forum?

-Han