Sometimes attendees will late to join meeting.
The host hope Webex can add a new function of rewind playback(likes youtube VDR) in the meeting,
and it can be played at double speed.
This feature will help latecomers to keep up with the progress of the meeting.
And the host already knows following workarounds：
・Stream Webex to youtube and use youtube's function-VDR for rewind playback
・or check the recording file at double speed
Turn on DVR on live streams
※But for security and immediate reasons, customer still hope that webex can do it.