Combobox On A Sheet Which Contains A List Of Projects

I have a combobox on a sheet which contains a list of projects. I can then pick one, and it will populate parts of the sheet with any sub-tasks that are linked to that project.

What i'd like to do is to cycle through every item in the combobox, and print the resulting sheet....

SO:

select 1st item in combobox
Print page
select 2nd item in combobox
print page
select 3rd item in combobox
print page

etc etc until the last item in the listindex....