Playback is applying TimeLine's data to stone's timeAgents respecting the timing, it uses SetPlaybackTick(int, bool)

You can control the speed of the playback with playbackSpeed

You can stop playback using StopPlayback()

You can control if the playback synchronizes the addTickCursor with playbackUpdateAddTickCursor, with this option, you can start recording or simulating right after you stop playback and old and new data will be synchronized