In what context would you use the 'Lift' button in the Program Monitor?

The 'Lift' button in the Program Monitor is used to remove clips from the timeline without leaving gaps in the sequence. When this function is activated, it essentially cuts the selected clips but automatically shifts the subsequent clips to fill the space where the removed clips were located. This is particularly useful for maintaining a continuous flow in the timeline, as it helps to keep the overall timing and pacing intact without requiring additional manual adjustments to close any gaps left behind by the deleted clips.

In contrast, copying clips to another sequence involves duplication, while changing the length of clips or adjusting audio levels pertains to different editing functions, such as trimming and audio mixing, which do not directly relate to the 'Lift' functionality. Thus, the use of the 'Lift' button is specific to deleting clips while ensuring a seamless editing experience.