Collapse / expand category

Hiya,
Admin>Products>Add Product>Category
Is there any way to collapse / expand the product categories?
Right now my list is long. So instead of displaying like:

Country
United States
UK
etc,

Color
Blue
Brown
etc

size
S
M
L

it will show as
Country
Color
Size

and a person has to click on the category to see the sub categories....

Thx