Pam, if you're still reading this - I have another question related to
this.

Imagine that I have two more levels in this list style. Level 8 is an
"i-list" and Level 9 is an "a-list", like this.

(i) apples
(ii) bananas

and the other:

(a) apples
(b) bananas

The reason for having them in the same list as the others is that I
want them to restart after a heading. This works fine. My only problem
is that I also want a numbered list:

1. apples
2. bananas

I want this list to restart after a heading. But I can only use nine
levels.

Any ideas?