curve editor and sequencer - questions and requests

Hello, I saw with 4.20 that weight curve tangents were add to the sequencer-curve editor, however in the regular curve editor I don’t seem to be able to do this, am I missing something or did you not add this feature to the actual curve editor? If not could it please be added?

other questions/requests
-for the curve editor, it would be nice to be able to view an arbitrary amount of curves at the same time, instead of just float and vector.
-for the sequencer, be able to add tracks to user created variables (create a public variable float in a blueprint and create a track for it?)

possible bug- I can’t seem to place the sequencer panel as a tab at the top.

thank you.