Timelines: Issues with Editing Vector Tracks.

I'm seeing multiple issues when trying to edit a vector track.

1. A lot of the time it wont even let you add a key with shift click.

2: If you have a certain channel open, and you right click to add a key to that channel, it will want to add the key to a different channel, one that is not even visible. IT should respect the visibility of the tracks. Say you have 2 tracks visible, X and Y, it should give you 4 options when you right click, add key to X, add key to Y, and key to X and Y, and add key to all tracks.

It seems like this issue might be that when you right click, it is detecting hidden curves and wanting to keyframe them.

3: If you have 2 tracks visible and shift click one of them, it will sometime keyframe the wrong one, even though they are not close to each other.

Edit Addition: Added link to AnswerHub post where user is experiencing an issue where he can still see the 'Add Key to X' only. I have attached screenshots for reference.

Tested this in 4.8.3 for comparison.

1. In any project, Add a new Timeline to an Event Graph.
2. Create a new Vector Track
3. Hide and Lock the X and Y curves.
4. Right click on the remaining visible curve (Z).

Expected: It will only allow you to add a key to the visible and unlocked curve.

Outcome: Only shows the 'Add Key to X' curve.

[Bug in 4.9] {fixed for 4.10} Can't add a keyframe (Y or Z axis) to vector track inside a timeline

New curve editor tries adding keys to hidden and locked curves