Open panel, viewer, and context menus
Panel
menus provide commands relative to the active panel or frame. Viewer menus
provide a list 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
active tool or selected item. 
- A.
- Triangle for opening viewer menu
- B.
- Triangle for opening panel menu
- To open a panel menu, click the triangle 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).