Missing animation clip offset selector in playhead

I was just wondering if it was possible to select from a point in time in the animation clip to the very end. The goal is to offset everything down.

I can Select All + Unselect the beginning, but I saw an old thread with the exact feature working in a previous version (clicking right in the playhead):

(https://forum.unity.com/threads/how-to-offset-all-clips-and-key-points-in-a-timeline.500559/)

However, I am not able to locate it in Unity most recent versions. Is it a bug? Dropped feature? Not working in my machine? Moved to another location? Checked and not found in 2021.1 and 2021.2.

If this was removed on purpose, and now that Unity is focused on Quality of Life improvements, I think this is the kind of thing that make our lives easier, so it'd be cool to have it back .