How can I remove structural elements from the content entries formatting?

In Writer, I can add structural elements such as tab stops to the formatting of an entry in the table of contents. But how do I delete such an entry?

(Unfortunately I don’t have the necessary karma to add an image to my question. I hope it is nevertheless clear what I mean.)

Looks like I can no longer edit my question. I forgot to mention that I’m on a Mac, if that makes a difference.

Click on it in top row so that it’s selected, then press Del

EDIT: A suggestion from IRC:

I would try fn-Backspace perhaps

at least in some apps fn-Backspace is treated like a “Del” key

I’m on a MacBook and don’t have a “Del” key.

fn-Backspace works. Thank you.