adds alt versions doco

Author: nathanwoulfe

16/umbraco-workflow/alternate-versions/alternate-versions.md

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+---
+description: >-
+  Create additional draft versions of documents, without impacting the 'main' draft version.
+---
+
+# Alternate Versions
+
+{% hint style="info" %}
+This feature requires a license - learn more about [Workflow's licensing model](https://umbraco.com/products/umbraco-workflow)
+{% endhint %}
+
+Alternate Versions enables the creation of additional draft versions of documents. These can be created and updated without impacting the editing or publishing of the 'main' draft version.
+
+Versions are managed from a Workpace View on a document, and inherit workflow permissions from the host document. Permissions to create, update, promote and delete versions can be set per User Group.
+
+## Working with Alternate Versions
+
+- Ensure the User Group permissions are set to allow appropriate access.
+![Alternate Version permissions](images/alternate-version-permissions.png)
+- Navigate to the Versions Workspace View on a content item
+![Versions Workspace View](images/versions-workspace-view.png)
+- Clicking the `Create` button opens a workspace modal with a copy of the current draft.
+![Version workspace](images/version-workspace-editor.png)
+- Update and save the new version
+- Find the new version in the collection view
+![Versions collection](images/versions-collection.png)
+
+Editors can create multiple versions of a document and update these independently.
+
+An alternate version is not published directly, instead it is set as the current draft version.
+
+If the host document has an approval workflow configured, versions must be approved via the same workflow before being set to current.
+
+If the host has no workflow configured, versions can be set to current by any user with the `Promote` permission.
+
+When a version is promoted to be the current draft, it can be further edited before being published (via workflow approval or directly, depending on configuration).
+
+## Variant versions
+
+Alternate versions can vary by culture or segment. 
+
+To create a variant version, select the desired variant from the document variant selector, then create the new version as outlined above.
+
+The collection in the workspace view will show only versions matching the current document variant.