What are 'nested sequences' used for?

Nested sequences are utilized to place sequences within another sequence, allowing for enhanced organization and more complex editing techniques. This feature is particularly beneficial when dealing with multi-layered projects, as it simplifies the timeline by consolidating multiple edits into a single sequence. Effectively, it allows editors to manage their work in a more organized fashion, making it easier to apply effects, transitions, or adjustments to an entire group of clips without the need to manage each one individually.

This organizational structure is essential in professional editing environments, where projects can quickly become complicated, and keeping track of different elements is necessary for maintaining workflow efficiency and clarity. By nesting sequences, editors can streamline their buildings, allowing for a cleaner timeline and a more coherent project structure, which is especially useful during the final stages of editing and refinement.

While the other choices may relate to different features or functions within video editing software, they do not encompass the primary use of nested sequences as a tool for organization and complex edits.