Apple Final Cut Express 4 - Manual (Page 284)

284 Part V Organizing Footage and Preparing to Edit
5 Click the disclosure triangle to view the clip’s markers.
If you want to give any of the markers a more descriptive name, simply click the marker
in the Browser, then click the marker’s name to select it. You can now change the name.
6 Drag in the Browser to select all the markers.
Markers for a clip