Custome Skills Window

[Pumbba]

Disclaimer: I know very little about programming, just done a little HTML.

How much of this is hard-coded? I'd like to group the skills in the Skills window in a tree. Example:

-Harvesting
--Gathering
--Mining
--etc.
-Crafting
--Fletching
--Light Armoring
--etc.
-Weapon Use
--Great Hammer
--Spear
--etc.
-Combat
--Crushing
--Defense
--etc.

Reading these forums for the past couple of days and the UI Builder docs, I'm not sure if this can be done at all.

I found the Skills window in the MainHUD (but can't actually see the graphic for it), and see the table references. And, I've been studying the TreeView from the quest journal. I assume I need to change the table to a tree. But, I'm thinking there isn't a way to group the skills like I want. And, there may not be a way to point the treeview to the skills anyway.

Any thoughts, tips, pointers?