how to add a comment (description) and how to update a tree

[ouboub]

Hi

Since I while I have been using org-fstree,
http://www.burtzlaff.de/org-fstree/org-fstree.el
which is a bit old and does not allow comments (properties) to be included but allows to
update a given tree
Now I tried out your package (thanks for providing it)
and an example looks like

* [[/home/oub/tmp/Example-tree/][Example-tree/]]
** [[/home/oub/tmp/Example-tree/README.org][README.org]]
   :PROPERTIES:
   :SUMMARY:  this file
   :END:

** [[/home/oub/tmp/Example-tree/Sheet1/][Sheet1/]]
*** [[/home/oub/tmp/Example-tree/Sheet1/test.org][test.org]]
** [[/home/oub/tmp/Example-tree/Sheet2/][Sheet2/]]
** [[/home/oub/tmp/Example-tree/Sheet3/][Sheet3/]]

I added this properties to add some comment.

question if I change the directory by adding a new file, can I upgrade the above tree, without destroying the property/comment?
I cannot see anything like this in your code, but I admit, this code looks very alien to me (because you use define-namespace which I have never seen)
regards
Uwe Brauer