Using Office 2007 and Win XP;

In XL 2007 shortcut menus (right click menus) is it possible to have a
"Title" row that does nothing when clicked but can be used to group the
custom commands?

For example (hopefully this will show up correctly in the news reader),

Formats <<<title/group
Number
Text
Imports <<<title/group
G/L
Payroll

If this is possible, what is the command to create a "Title" or "Group Name"
line?

Thanks much in advance.