In Looop you can easily change the author of a resource.

Authors are automatically set as the user who created a resource. If you'd like to change this, go into the resource, hit edit and select settings.

The author option is at the top.

When you select set author, you'll be able to choose another user.

Please note only users that have 'can edit resources' access within the workspace the resource is in will be able to author it. To view the access settings of your workspace, go to manage workspace and select access. Use the drop down menu next to the user's name to change their permissions.