Character Unable to jump

I’m unable to jump in my game and I’ve tried the simple ways already but i didn’t think it was going to work anyway.
my character is a paper character and its movement is set to flight it struggles getting up slops and cant climb steps but the thing i need most is being able to jump so if anyway could help that would be great, thank you.

Are you using the Character Blueprint/C++ or Pawn.
If you are using the chracter one it should by default have a function Jump.
Just call that