Posted by Cantar4 on
URL: https://forum.librecad.org/Impossible-to-copy-paste-from-0-to-another-layer-tp5713573p5713575.html

 Application Preferences -> Defaults -> Modify layer of selected entities,
on layer activation  
 
Perfectly works, thank you. (where is this secret user manual hidden? ;-)

 You can copy  then switch the layer with Modify -> Properties (or Attributes)

Now at last I understand why I overlooked the usage of Attributes :
in the 'modify' menu we find action verbs like Divide, Stretch, Explode etc.,
reading Attributes close to Properties I thought is was the name of a similar
combo giving access to fancy attributes (inactive for some reason).  
'Attribute to' or 'Lift' should avoid newbies of my kind disturb you on your bumpy road to Solstice.