What is the shortcut key for entering trim mode in AVID Media Composer?

The shortcut key for entering trim mode in AVID Media Composer is associated with the timeline manipulation of your clips. This mode allows editors to perform precise edits at the in and out points of clips, making it crucial for fine-tuning cuts and transitions between clips in a sequence.

The choice of shortcut key is specifically designated as ‘U’ because it represents the "Use" command in this context. In trim mode, you can adjust the timing of clips without affecting the overall sequence length, facilitating detailed edits.

In contrast, other options correspond to different functions within the editing software, but for entering trim mode specifically, ‘U’ is the correct choice.