The current default outline is indented too far and wastes too much space.  
How can I make my own design the default--so that when I'm in a sub-groupe
and hit enter for the next line and hit backspace it will go to a bullet that
I used above for the title of the subgroup.  For example:
A. my idea here
   1. blah blah blah
   2. blah blah blah
B. another idea
   1. blah...
       i. ....
      ii. ...
   2. blah...
(if i hit enter after 2, it will give me 3. ok that's good, but if i hit
back space i want it to go the the exact formatting that I set for A. or
B.--but it doesn't.  Or if I tab, I want it to use my formatting that I used
for the roman numerals--but it doesn't, it gives me a different bullet.)
Also, I use the bullets more so than the numbered outline, if that makes any
difference.  Thank you for your help!