Editing : Edit Modes and Tools : Loop Trim Tool : Trimming Looped Clips

Trimming Looped Clips
You can trim looped clips in two ways:
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Loop Trim a looped clip to change how long the clip is looped. For example, Loop Trim a looped clip from 2 bars to four bars. With a 1 bar clip, the number of loops changes from 2 to 4. Each loop iteration remains the same length, but the length of the entire looped clip changes.
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Trim the source clip (loop iteration) while keeping the overall loop length unchanged. The number of loop iterations within the looped clip changes accordingly. For example, trim a 2 bar loop iteration of a 4 bar looped clip to 1 bar. The 4 bar looped clip remains constant, but the number of loop iterations changes from 2 to 4. Each loop iteration’s length changes, but how long the clip is looped does not.
To Loop Trim a looped clip:
1 Select the Loop Trim tool.
2 Move the cursor over the top half of the looped clip (not over a Loop icon). The cursor indicates the Loop Trim tool.
 
3 Trim the looped clip.
 
The number of loops increases or decreases to fill the new length of the entire looped clip.
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Hold the Start key (Windows), or the Control key (Mac) while trimming to trim in loop iteration increments.
To trim the source clip (loop iteration) of a looped clip:
1 Select the Loop Trim tool.
2 Move the cursor over a Loop icon in the looped clip, or anywhere along the bottom of the clip. The cursor indicates the Trim tool icon.
 
3 Trim the start or end of the loop iteration.
 
The number of trimmed loop iterations increases or decreases to fill the original length of the entire looped clip.