== During creation ==
Once a container object is created and saved, a child object is immediately created automatically. The type of the child object to create depends on [[FIXME]].
{{{Hint|After the first child object is created, one can always create more child objects manually just like for regular objects.}}}
== Document container ==
If a container is also a [[FIXME|document]] at the same time, it will display a thumbnail image of its child documents.
{{{Hint|Just like for regular documents, thumbnails for documents document containers are only generated on the server, therefore, one will only see them if the objects are committed to the server.}}}
== Photo container ==