On Wednesday, 28 Jun 2017 at 14:40, Loris Bennett wrote:
> I tried
>
>   C-c m a

Not sure as I do not know what that is bound to!  I suggested using
org-sparse-tree (normally bound to C-c /) with the D option.  Have you
tried that?

-- 
: Eric S Fraga via Emacs 26.0.50, Org release_9.0.9-551-g92e8c8