menu factory && check boxes

[Jeff <schizm pc-4374 bc rogers wave ca>]

how can one specify several submenus that have say, a choice of 6
items, that are all checkboxes 

ie. so that only one of the menu values can be chosen, and the current
choice is displayed for the user :)

i can get it fine when not using the menu factory, but with the menu factory
im not too sure how to go about doing that :)

thanks

Jeff