copy group into a different parent

[mariocha]

With regards to parent, the API doc is pretty brief. Retrieve the name seems to be the only fonction.
In ruby, Is there a way to copy a group in parent1 to parent2 ?

[TIG]

You have a reference to the entities of parent1.
From which you can get the reference to the group.
From that you can get it definition - group.definition
You have a reference to parent2, and thus its entities
Simply add the group's definition into that, retaining its transformation...

Assuming parent2 is a definition...

parent2.entities.add(group.definition, group.transformation)

However, if parent2 is an instance use

parent2.definition.entities.add(group.definition, group.transformation)