What groove thing?
If you mean the powerbar, then you can move them in a place where they are not visible.
From his System Direction cns (that I translated):
[State ＳＡゲージｙ軸];数値を小さくするとゲージは上の方へ移動します Move the Super Bars up or down by changing the value.instead of 12 put a random number like 9999999 and voilà, no more powerbar!
type = VarSet
trigger1 = 1
var(17) = ceil(gameheight-12)