When you drag a source clip to an existing track or drag a segment to another location on an existing track, you can preview where it will be placed by displaying a phantom segment. The phantom segment appears in all Snap modes including when Snap is off.

To preview the placement of shots:

1. In the Timeline section of the Preferences menu, enable Phantom Inserts in the Display group.
2. Select a source clip or a segment on the timeline and drag until the cursor is close to where you want to make an insertion. The location of the cursor on the timeline determines whether your shot's head or tail snaps to the element.

   The segment turns pink as a preview of where it will go after you release the cursor.

   
   

   (a) Tail of shot will snap to segment  

3. Release the cursor when you are satisfied with the location of the phantom segment.

   The timeline is updated with the new material.