Fly buttons?

[RoyalDirt]

My character has bat wings yet I am unable to fly. Please keep in mind that I am new to feral heart!

[sanrio]

You can use E to start flying.
R to fly up and I think F to fly down.
Hopefully this helps! 

[Insoholic]

I suggest you to check out the Basic Game Controls, since you're new to the game. Have fun!~

[Chipz]

You can use E to start flying.
R to fly up and I think F to fly down.
Hopefully this helps! 

As well as R to go up you can use pgup and instead of F you can also use pgdown but R and F are what most prefer.