Thanks for all the responses I've received.
Many solutions and suggestions.
The only one that works for me is to modify some config.pro options.
Thoses settings make me abble to copy and paste surfaces.
allow_ref_scope_change YES
default_ext_ref_scope ALL
default_object_scope_setting ALL
default_object_invalid_refs COPY
ignore_all_ref_scope_settings YES
model_allow_ref_scope_change YES
scope_invalid_refs COPY
GB
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