Once the properties are visible you can click the property in the timeline with the option key held down. This will create a new keyframe at the time of the click.

按住键盘上的option键，点击时间轴上的属性，这将在你当前点击的时间点上建立一个关键帧。

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Once the properties are visible you can click the property in the timeline with the option key held down. This will create a new keyframe at the time of the click.

按住键盘上的option键，点击时间轴上的属性，这将在你当前点击的时间点上建立一个关键帧。

youdao