Timeline selections are displayed in the Main Timebase ruler with
Timeline Selection Markers, which appear as blue arrows (red when recording). In addition, there are
Pre- and Post-Roll Flags (which are green when enabled) indicating the location for pre- and post-roll.
When the Timeline and Edit selections are unlinked, Edit selections are displayed in the ruler with
Edit Markers, which appear as black brackets.
If the Timeline and Edit selections are linked, Edit selections are represented by the blue Timeline Selection Markers.
See the following topics for more information on working with Timeline and Edit selections: