Changing "Default" Email flags

When you flag an email, the "default" is to make the flag:
Request: Follow-up
Colour: Red
Status: Not Completed
Due: None

Is there a way to change that default? I know how to change the flag once the default is set, but is it possible to change the default properties of the flags? What would be really great is if you could assign keypad shortcuts to different defaults, (one to auto flag as complete, one for not complete, etc.) but maybe I'm really dreaming here.

Any help would be appreciated. Thanks in advance.