Gmax Modelling Error

[sampbob]

i need some help. i have just downloaded Gmax and i imported the washington .dff with Kam's Script. i have added some police lights, new wheels, and a pushbar, but then when i go to export it it keeps saying that i have more than 1 HIERARCHY link selected, and i dont know how to fix it, plz help!!! i really need help i really wanna see how this cars gonna turn out cuz right now it looks badass.

Heres the error:

Here are some pics of the car:

[florian_1034]

for first the car has only one while,the other whiles is made by game ,in gmax is just some small cube white name as

wheel_lf_dummy.2 if you add something to car you need to attach that to chassis or bonnet(right click on chassis an select attach).so god luck whit colision part and the car color