can i create a treeview for my global variables?

hey, i recently started game programming in XNA. problem is:

i have a lot of global variables. can i create a treeview for them somehow so i can devide them into several groups?

and with treeview i mean like how you can open and close namespaces / classes / voids.

thanks in advance :)

Rather than having a random scattering of globals, how about one global struct?

Eg.

Code:

---

struct {
  Player player;
  Map map;
  NPC Npc[MAX];
} gameState;

---

The tree view follows the structure declarations (recursively).