What are the default keys for marking in a sequence?

The default keys for marking in a sequence, particularly in video editing software, are typically associated with setting in and out points for clips or timelines. When marking a sequence, the 'E' key is commonly used for setting an "In" point, which establishes the beginning of the clip you want to work with. The 'I' key usually serves a similar function in many applications for marking an "In" point, but in this context, it is likely a typographical error, as the key most often linked to the "In" function would be the 'I' key.

Thus, recognizing the combination of these two keys as the default for marking is crucial for efficient editing workflows. This allows editors to quickly select sections of video to include in their projects, facilitating smoother transitions and narrative flow in the final product. The association of these keys with marking sequences is widely adopted in the realm of editing software, making it an essential skill for anyone engaged in video production.