Hi,
not direct but you have two other ways todo that:
1. You could use subinherit rights for a tree part. So if a user creates a content it has special rights so that only a user can see this content and the admin. So as admin you could approve the content and move or edit the rights of the content.
2. You could create a special part in the tree for a user or group. After the user creates a content you could move the content to the right location.
Hope this helps?!
regards,
Frank