1. Select Source Space

Users will only be able to select source spaces that they have permission to ‘view’.

2. New Space Details - Name and Key

Enter a unique space name and space key for the new space getting create. Those names and key need to be valid according to Atlassian’s validation.

Clone page label
All pages will maintain their labels after cloning.
Clone page restrictions
All pages will maintain their initial page restrictions allowing only specified users to view and edit them.
Clone page attachments
All page attachments will be cloned into the new space. Meaning all images and other attachments displayed inside confluence pages will work just fine inside the new space.
Clone page properties
Page properties are a technical concept to store additional information on pages that many apps use. You can clone them on the new created pages with this checkbox.

Cloning page properties is not available on a free confluence license.

Clone space permission
This setting will clone the space permission from the source space, allowing the same users and user groups to perform the same actions as in the source space
Default space permission
The new space will use the ‘Default space permission’ specified in Confluence global settings.
Make the new space private
Doing so will only allow the current user to access the created space. All other users and groups need to be manually added if you wish to share the space later.

Cloning space permission is not available on a free confluence license or for non-Confluence admins.

Page Title Prefix
All pages inside the cloned space will get a specified prefix added in front of their page name.
Example:
Prefix: 'APP: '
Initial page name: 'How to'
Page name after cloning: ‘APP: How to’

Make sure to also specify an space in the prefix, if you choose to have one. Otherwise it would look like this: ‘App:How to’

Page Title Search
Here you can specify a text snippet, that you can replace with anther text snippet by providing a ‘Page Title Replace’.
Page Title Replace
If a ‘Page Title Search’ is provided, all page titles in the new space will have the found text snippets of ‘Page Title Search’ replaced with the provided text snippet from ‘Page Title Replace’:
Example:
Page title search: ‘Product A’
Page title replace: ‘Product B’
Initial page name: ‘How to initiate Product A’
Page name after cloning: ‘How to initiate Product B’