How to make player fly in a similar way to how you would in minecraft creative mode

[honest tendon]

how would i achieve this.

i would say similar but controllers were q is down and e is up, not space up and shift down, but the main question is how do i make the player even fly like this in the first place

[carmine geyser]

do you have grounds

uh

float

disable gravity or make invis part below player