Which panel is primarily used to place various assets and edit them as sequences?

The Timeline Panel is essential for assembling and editing video sequences because it visually represents the sequence of clips over time. It allows you to arrange your video clips, audio tracks, and other assets in a linear format, enabling precise timing and synchronization of elements within the project.

Using the Timeline Panel, you can easily manipulate clips—trimming, splitting, and adjusting their order—to create a cohesive narrative flow. This panel also includes features for adding transitions, keyframes for animation, and effects that apply directly to the sequence timeline, enhancing your editing capabilities.

In contrast, while the Source Monitor Panel is useful for previewing clips before adding them to the timeline, it does not serve the primary purpose of placing assets or editing them in sequence. The Project Panel is primarily used for organizing and managing assets, such as video files, images, and music, but it does not provide the tools necessary for editing sequences directly. The Effect Control Panel is specifically for adjusting effects on selected clips, which is crucial after they've been placed in the timeline but doesn't encompass placing or arranging assets.