How do you create a subclip in the Source Monitor?

To create a subclip in the Source Monitor, marking an in and out point followed by selecting "Make Subclip" is the most effective and standard method. This process allows you to define a specific portion of a clip that you want to isolate and use independently from the original, giving you control over exactly which section of the footage you want to work with.

When you mark an in point, you're indicating where the subclip should start, and marking an out point determines where the subclip will end. After defining these points, the "Make Subclip" function lets you create a new clip that only contains the selected range. This feature is beneficial in organizing your media, especially when dealing with long footage.

The other methods listed do not effectively create a subclip. For example, dragging and dropping the clip directly into the timeline loads the entire clip, while copying the clip to clipboard doesn't create a subclip. Right-clicking on the timeline won't result in the creation of a subclip either, as the timeline deals with the arrangement of clips rather than defining new subtitled segments from existing footage. Hence, the method of marking in and out points and selecting "Make Subclip" appropriately captures the desired portion for future use.