proposal: extra data when improt / export

[jas1]

may be really usefull to use the mind map as a fresh start for something. or for general thingking.
then you can use the generated json elsewhere.

ex:

"root": { ... 
"children": [
 {"id": "child 1"},
 {"id":"child 2"} 
 ], ... }

and add some extra properties on each node. like " description " or " comments " elsewhere, manually or by an app
then save this new json with extra properties, on each node.

"root": { ... 
"extraProperty":"an interesting extra property",
"children": [
 {"id": "child 1",
  "description":"some contextual description of child one"},
 {"id":"child 2",
  "description":"some contextual description of child two"} 
 ], ... }

after that try to re import the json on mindmaps for " general thinking " and repeat.

Tried to do that but when i generate the new json with extra properties,
it reads the json , just ignoring the new stuff because it dont need to pay attention about that ( ok )
and when saving the new stuff is gone ( not ok )

what is proposed here is that:

when you load a json with extra info,
and then save the same json,
the extra info is kept under the corresponding node id and not ignored,
if node is deleted, well , that extra info is gone too .

pd: love the application always recommend it =) thanks for the awsome work.