You can try the ResetXPTotal function, here's the documentation found in gametab.simba:
Simba Code:
(*
ResetXPTotal
~~~~~~~~~~~~
.. code-block:: pascal
function ResetXPTotal: Boolean;
Resets the XP Bar.
.. note ::
by Narcle & IceFire908
*)
function ResetXPTotal: Boolean;
var
TPA: TPointArray;
P: TPoint;
begin
TPA := TPAFromBox(IntToBox(521, 51, 546, 75));
FilterPointsPie(TPA, 0, 360, 0, 12, 534, 63);
P := TPA[Random(Length(TPA))];
Mouse(P.X, P.Y, 0, 0, mouse_right);
Result := WaitOptionMulti(['Res', 'ese', 'set'], 1000);
end;