How do I change the start/end time of a clip in Final Cut Pro X without changing the duration? Imagine I made a bunch of changes to a project, I have a bunch of videos lined up like [clipA][clipB][clipC]. Now I want to tweak clipB's start/end times without changing it's duration such that the audio for all the other clips is still aligned properly.

I know I can drag the left/right edges of clipB, but that'll mess with the audio and where all the other clips start/end. All I want to do is adjust the start time of clipB.

I'm assuming there is a way to specify the timecode for the start via typing it in, but I want a way to do this with the UI.

iMovie has this feature. You just go to Window > Show Clip Trimmer. Then you drag the clip left and right to change its start time while keeping the duration intact.

I couldn't find a way to do this in Final Cut Pro. The closest I could find is I can go Clip > Open Clip, and then there is an interface that looks like it would allow me to drag the clip to adjust the start time, but the text always shows +00:00.00, and after dropping it, it resets back to the default.

How can I adjust the start time of a clip via the GUI without affecting its duration?

Update: Here is a screengrab from iMovie that shows exactly what I'm trying to do. Notice how I can tweak the start/end times of the clip without affecting the clip's duration:



How do I do the same thing in Final Cut Pro?
With the Open Clip option, the reason that it's not taking any of the changes is because the Arrow tool is selected. Hit the tool icon and choose Position and it'll start taking your changes.



The Clip Trimmer feature in iMovie does not seem to have an equivalent in Final Cut Pro.

This is unfortunate, because one of the other really cool features of the clip trimmer, is that it shows you the start/end frame as you drag the clip which saves you time.