A method, comprising: at a computer system that is in communication with a display generation component: displaying, via the display generation component, a user interface that includes concurrently displaying: a representation of a video having a first duration, wherein the video includes a plurality of changes in subject emphasis in the video, wherein a change in subject emphasis in the video includes a change in appearance of visual information captured by one or more cameras to emphasize one subject relative to one or more elements in the video, wherein the plurality of changes include an automatic change in subject emphasis at a first time during the first duration and a user-specified change in subject emphasis at a second time during the first duration that is different from the first time; and a video navigation user interface element for navigating through the video that includes a representation of the first time and a representation of the second time, wherein: the representation of the first time includes a first change indicator (686a, 686b, 686d, 686f, 686g) that indicates that an automatic change in subject emphasis occurred at the first time; the representation of the second time includes a second change indicator (688c, 688e, 688h) that indicates that a user-specified change in subject emphasis occurred at the second time; the first change indicator is displayed concurrently with the second change indicator in the video navigation user interface element; and one or more change indicators corresponding to one or more automatic changes in subject emphasis, including the first change indicator, have a different appearance than one or more change indicators corresponding to user-specified changes in subject emphasis, including the second change indicator. a representation of a video having a first duration, wherein the video includes a plurality of changes in subject emphasis in the video, wherein a change in subject emphasis in the video includes a change in appearance of visual information captured by one or more cameras to emphasize one subject relative to one or more elements in the video, wherein the plurality of changes include an automatic change in subject emphasis at a first time during the first duration and a user-specified change in subject emphasis at a second time during the first duration that is different from the first time; and a video navigation user interface element for navigating through the video that includes a representation of the first time and a representation of the second time, wherein: the representation of the first time includes a first change indicator (686a, 686b, 686d, 686f, 686g) that indicates that an automatic change in subject emphasis occurred at the first time; the representation of the second time includes a second change indicator (688c, 688e, 688h) that indicates that a user-specified change in subject emphasis occurred at the second time; the first change indicator is displayed concurrently with the second change indicator in the video navigation user interface element; and one or more change indicators corresponding to one or more automatic changes in subject emphasis, including the first change indicator, have a different appearance than one or more change indicators corresponding to user-specified changes in subject emphasis, including the second change indicator. the representation of the first time includes a first change indicator (686a, 686b, 686d, 686f, 686g) that indicates that an automatic change in subject emphasis occurred at the first time; the representation of the second time includes a second change indicator (688c, 688e, 688h) that indicates that a user-specified change in subject emphasis occurred at the second time; the first change indicator is displayed concurrently with the second change indicator in the video navigation user interface element; and one or more change indicators corresponding to one or more automatic changes in subject emphasis, including the first change indicator, have a different appearance than one or more change indicators corresponding to user-specified changes in subject emphasis, including the second change indicator.