I looked for videos on this and could not find any. I can’t find much of anything about it really. Off the top of my head I would think you would need the character to jump high into a summer sault at the peak of the jump. Then if the face button bottom for example was pressed within a “window” of time (like where the summer sault would be or just plain jump) then the character does the jump kick.
Would you do this as a montage while in the air from a jump? Or would be something in the animation blueprint?
Assuming that you want the character to kick while in the air, you would need to get the velocity of the character and then run your kick button if the player is in the air or if the velocity is >= X or so forth