I'm new to this so please don't shout too loud is this is trivial

Is there any way to restrict which data-type is shown in different directories when the user choose "new form entry" ?
the following is the directory structure (MB being the branch):
/default/main/PS/MB/WORKAREA/portal/
- personal
- promotions
- contact
- about
/default/main/PS/MB/WORKAREA/portal/templatedata/portal/
- Header (data,presentation subdirs)
- Footer
- Promotions
- Faqs
- Navigation
Header, Footer, Navigation should be available under all the directories:
Promotions should ONLY be available under promotions
Faqs should ONLY be available under about
Is there any way this could be achieved via the templating.cfg vpath-regex or dir-regex ?
Thanks.