Adobe After Effects - Manual (Page 116)

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Right-click (Windows) or Control-click (Mac OS) the item, choose Rename, and enter the new name.
To rename the Comment column, right-click (Windows) or Control-click (Mac OS) the column heading and choose Rename This.
You can use the Comment column to create a custom sorting option. Rename the column, enter corresponding information for each item (for
example, camera number), and then sort by that column.
To sort items by entries in any column, click the column name in the Project panel.
Copy items
To duplicate or copy an item in the Project panel, select it and choose Edit > Duplicate or Edit > Copy.
To copy a footage item to Windows Explorer (Windows) or the Finder (Mac OS), drag the footage item from the Project panel to the desktop.
Reveal footage items
To reveal where a footage item is used in a composition, right-click (Windows) or Control-click (Mac OS) the footage item in the Project
panel and choose Reveal In Composition; then select the specific instance you want to reveal (composition name, layer name).
To reveal the source footage item for a layer in the Project panel, right-click (Windows) or Control-click (Mac OS) the layer in the Timeline
panel, and then choose Reveal Layer Source In Project.
To reveal the location of a footage item in Adobe Bridge, Windows Explorer, or the Finder, right-click (Windows) or Control-click (Mac OS)
the footage item in the Project panel and choose Reveal In Bridge, Reveal In Windows Explorer, or Reveal In Finder.
Refresh footage items
To refresh footage items selected in the Project panel to use the current versions of the source footage files, choose File > Reload Footage.
View footage item in the Footage panel or media player assigned by operating system
When items are previewed in the Footage panel, they show the results of the footage interpretation operations. (See Interpret footage items.)
To open a footage item in a Footage panel, double-click the footage item in the Project panel.
To open selected footage items in the Footage panel, press Enter on the numeric keypad when the Project panel is active.
To open the source for a footage item using the player application associated with that file type, Alt-double-click (Windows) or Option-
double-click (Mac OS) the footage item in the Project panel. See the documentation for your operating system for instructions for changing the
associations between applications and file types.
Trim footage items in the Footage panel
You can use the Set In Point , Set Out Point , Ripple Insert Edit , and Overlay Edit controls in the Footage panel to trim a footage item
and insert it into a composition. Trimming in the Footage panel can be more convenient than adding the footage item to a composition and then
trimming its layer in the Timeline panel.
Edit footage in its original application
You can open and edit a footage item in the application in which it was created, directly from an After Effects project. The original application must
be installed on the computer that you are using, which must have enough available RAM for it to run. When you edit and save changes to the
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