Events are triggered in the AC Scheduler as AC+MUS pairs, so replaying means re-arranging that event on the AC timeline and previewing on the canvas.
事件在 AC 调度器中以 AC+MUS 配对触发，重播即把该事件重新排到 AC 时间轴并在画布预览。
1. Open the EVT panel and confirm the event exists (or save it to LIBRARY first), noting its trigger.
1. 打开 EVT 面板确认事件存在（或先存入 LIBRARY），记下其触发条件。
2. Open the AC Scheduler and select the target layer: L2 camera, L1 role, L3 scene or L4 audio.
2. 打开 AC 调度器，选择目标层：L2 镜头、L1 角色、L3 场景或 L4 音频。
3. Place the AC+MUS event pair at the desired frame position on that layer.
3. 在该层目标帧位置放置 AC+MUS 事件对。
4. Bind the event to the matching action unit in the AG panel (target part = join, trigger event).
4. 在 AG 面板把事件绑定到对应动作单元（目标部件 = join，触发事件）。
5. Click CANVAS to preview; drag the character to adjust dx/dy, edit rot/scale, changes sync back into codes.
5. 点击 CANVAS 预览；拖动角色调 dx/dy，改 rot/scale，改动会同步回代码。
6. If the event is reused across projects, load it from LIBRARY into the EVT panel in one click.
6. 若跨项目复用，从 LIBRARY 一键载入 EVT 面板。
7. Validate the project and check the clickable error list before rendering.
7. 渲染前做项目校验，查看可点击的错误列表。
Try it in the 3SAX V3 creator tool now.
现在就在 3SAX V3 创作工具里试试。