Клик на название графика включает/выключает его. "-Дельта" - графики скорости изменения, единиц в минуту.
Any Unlisted videos that were uploaded before January 1st, 2017 will be moved to Private starting July 23, 2021 - unless you take action. In this video, we'll walk you through what actions you can take before this change takes effect. If you would like your affected videos to remain Unlisted in their current state, you can opt out of this change here: https://support.google.com/youtube/contact/older_unlisted_update To see the videos affected by this change, click here from a computer: https://yt.be/help/J8ndb Learn more with this Help Center article: https://support.google.com/youtube/answer/9230970 This is happening because in 2017, we rolled out a security update to the system that generates new Unlisted video links. This update included security enhancements that make the links for your Unlisted videos even harder for someone to discover if you haven’t shared the link with them. We’re now making changes to older Unlisted videos that were uploaded before this update took place. We understand that this change may be challenging, so we’re giving you time to make adjustments to your videos before this change takes effect starting July 23, 2021. Subscribe and hit the bell to see new videos: https://goo.gl/So4XIG ► Check out our Help Center: https://goo.gl/fBzr7