Custom categories and sub categories for usercontrol's custom properties

See more:

VB

user-controls

I have create a UserControl and some custom properties for it but I want to group them into a custom category with "sub categories".

What I have tried:

Something like that.

|+| Custom Category Name
    |+| Custom Sub Category
        |+| My Property
               My Value1 Header: Value1
               My Value2 Header: Value2
    OR

|+| Custom Category Name
    |+| Custom Sub Category
           My Property: Value

I know how to make custom properties and add them into custom categories, but how can I make sub categories and add my custom properties in?