[O] show only top level TODO in agenda and ignore sub level TODOS in agenda?

[Xebar Saram]

Hi all

i recently had some projects where i would define the overall project as a TODO and then add some more sub headers with TODOS. the problem is that i dont want to see all these sub TODOS in the agenda. For example:

* TODO start writing paper

** TODO  collect data

** TODO  add refernces

...

i would like only the * TODO start writing paper to show in the Agenda view.

obviously i dont want it to happen in any header-sub header in all files but rather for specific headers. 

is there a property drawer/other trick to achieve this?

best

Z