Open panel, viewer, and context menus

Open panel, viewer, and context menus
Panel menus provide commands relative to the active panel or frame. Viewer menus provide lists of compositions, layers, or footage items that
can be shown in the viewer, as well as commands for closing items and locking the viewer. Context menus provide commands relative to the item
that is context-clicked. Many items in the After Effects user interface have associated context menus. Using context menus can make your work
faster and easier.
To open a panel menu, click the button in the upper-right corner of the panel.
To open a viewer menu, click the name of the active composition, layer, or footage item in the viewer tab.
To open a context menu, right-click (Windows) or Control-click (Mac OS). This action is sometimes referred to as context-clicking.
Columns
The Project, Timeline, and Render Queue panels contain columns.
To show or hide columns, right-click (Windows) or Control-click (Mac OS) a column heading (or choose Columns from the panel menu), and
select the columns that you want to show or hide. A check mark indicates that the column is shown.
Note: In general, the search and filter functions in the Project and Timeline panels only operate on the content of columns that are shown.
To reorder columns, select a column name and drag it to a new location.
To resize columns, drag the bar next to a column name. Some columns cannot be resized.
In After Effects CS5.5 and later, sort footage items in the Project panel, click the column heading. Click once more to sort them in reverse
order.