If a simple check-box would do, you could perhaps use a check-box character from a font such as Wingdings: lower-case q, for example, for a simple check-box with a discreet drop shadow.

And if you don't need a number as well as the checkbox – though that is perhaps unlikely – you could set styles and enter [checkbox] [tab] at the start of each primary entry. Worth it for simpler list management <g>

Attached Images

charMap.png (40.8 KB, 10 views)