[Adium-devl] Why does the applescript dictionary not allow me to enable/disable accounts?

[Robert Nicholson]

So the plan was to use Adium to enable and disable certain accounts  
with Network Location so that it can disable the accounts that aren't  
supported on networks at work. Yahoo being allowed but not MSN, YHOO  
etc.

But it looks like the enabled property of the account is read only.

Why is that?