The maps can be separated with permissions within one workspace, they don't need to be accessible (or even be seen) by everyone.
To move the maps from workspace A to workspace B, please follow these steps:

1. Make sure that you are a Member of both workspace A and B and you can create story maps.

Moving a story map, step-by-step:
2. Open workspace A

3. Open 'MANAGE WORKSPACE' menu in the top-right corner and select Manage storymaps

4. Click on the Options menu on a story map's tile

5. Select Move from the menu
If the Move menu is missing, please check step 1.

6. Select Move to B workspace

7. Repeat 4-7 with all the maps

8. Go to workspace B

9. Open the moved maps and 'Share' them with the appropriate people in the new workspace. You might need to invite them into the new workspace.

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