What are Default Permissions?

AppDefend has five states: 1. BLOCK, 2. ALLOW, 3. ASK USER / ALLOW, 4. ASK USER / BLOCK, 5. DEFAULT.
These states are explained at https://www.wilderssecurity.com/showthread.php?t=107339.
There, Jason explains DEFAULT as follows:
"DEFAULT - Use whatever is defined in the .Default rule".

This explanation prompts me to ask three questions:

1. What is THE .Default rule?
2. Where do you find ".Default rule"?
3. Precisely what happens when a permission is set to Default?

 

in the permissions tab of AppDefend, there should be an item titled ".Default". select it to view and change teh default actions.

for reference:

http://img131.imageshack.us/img131/3981/gss37gn8.png

 

THANKS! It's the first entry in the left pane.