Hello @Ali Samie, i'm in the same position as you were but i can't find my way in this problem. Do you have a working example of what you achieved to do ? I need a multi step checkout with step above the content and the ability to move from one step to another but I can't make it work !
Same question for you @DARKF3D3, did you manage to find a way to do what you wanted to do ? I would love to have some example.
Thanks for your help.