How to use graph editor for tail animation

To use graph editor for tail animation

Step1

To use graph editor for tail animation, in Graph Editor, you must set Oscillate for Null_mainTail.Position Y.

Step 2

Then, set 1.0 for Tension.

Step 3

Now, you need to click on the first point and set tension 1.0 for it too. Now the curve looks smooth as shown by the picture below.