Hello,

Is there a way to achieve something like below? See the content in each nested subtree in the example below. 

#+title: Concatenating property values from parent subtrees

* Section

:PROPERTIES

:EXPORT_XYZ: a

:END:

At this point, the value of XYZ property should be "a".

** Sub-section

:PROPERTIES

:EXPORT_XYZ: b

:END:

At this point, the value of XYZ property should be "ab".

*** Sub-sub-section

:PROPERTIES

:EXPORT_XYZ: c

:END:

At this point, the value of XYZ property should be "abc".

--
Kaushal Modi