Without knowing more about your project than A and B, it is a guessing
game what could be best.

But to me, if I understood correctly, it sounds like you are about to
create a data-redundancy over several layers.

If those attributes are really the same, and stay the same, it would
maybe me wiser to work with relations and/or virtual layers where you
could deliver those common values without having to really store them
individually in each layer.



On 25.11.20 22:43, L.W. wrote:
That's what I want to use, but how to set the "default value" - no, not
per propertier and form builder.

I want to set the DV by input in "UI A" (add feature to layer A) and
then add new feature to B, and in UI B the DV is set to value from
form A.


Am 25.11.2020 um 21:19 schrieb Harrissou:
Hi,
Something like setting default values for field:
https://docs.qgis.org/3.16/en/docs/user_manual/working_with_vector/vector_properties.html#default-values

<https://docs.qgis.org/3.16/en/docs/user_manual/working_with_vector/vector_properties.html#default-values>

?

Regards,
Harrissou

Le 25 novembre 2020 20:49:17 GMT+01:00, "L.W." <eagl...@gmx.de> a
écrit :

    Hello,

    I have a question again, I know the possibility of the project
    variables, which can be queried from all layers.
    I have to insert several points and lines or polygons in
different layers.
    All inserted features have in common that they have certain
attributes
    that are the same for all.
    It would be nice if I only have to enter these common attributes
for the
    first feature and the values ​​are then automatically inserted as
    default values ​​for each new feature.
    One possible way would of course be a link to a shared data
table, but I
    don't necessarily want to go this way for reasons.
    I know the option of giving a UI a Python script when it is
opened (even
    if I can't Python), but I haven't found anything to execute a script
    after closing, for example.
    Obviously logical, you can of course set the variables
beforehand, but
    that would be another step that you have to take beforehand and you
    cannot get to these variables without a whole series of mouse
clicks.

    Any ideas?

    Regards
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