[Closed] spinner control scale by axis

Hi everyone,

I'm beginning on maxscript and I currently have an issue.
I'd like to control an object's scale x, y and z independently with 3 spinners. I also need the feeback on the spinners if I scale the object

I already can control the position or the rotation like this:

"
x_Controller = Bezier_float(); y_Controller = Bezier_float(); z_Controller = Bezier_float()

--assign controller to spinners
dialogtest.spinnerA.controller = x_Controller;  dialogtest.spinnerB.controller = y_Controller;  dialogtest.spinnerC.controller = z_Controller 

-- position control:
$.pos.X_Position.controller = x_Controller; $.pos.Y_Position.controller = y_Controller; $.pos.Z_Position.controller = z_Controller

--rotation control:
$.rotation.X_Rotation.controller = x_Controller; $.rotation.Y_Rotation.controller = y_Controller; $.rotation.Z_Rotation.controller = z_Controller
"

But I didn't succeed to do the same for the scale. I can easily control the scale with spinners like this:

"
on SpinnerA changed arg_x do $.scale.x = (arg_x)
on SpinnerB changed arg_y do $.scale.x = (arg_y)
on SpinnerC changed arg_z do $.scale.x = (arg_z)
"

but this way I don't have the feedback on the spinners if I directly scale the object ...

So after hours of google search, I'm tired and I need help please :)