Once you export layout settings file you are able to import those setting anywhere wp timeline pro plugin installed
1. Go to Dashboard » WP Timeline Designer PRO » Import Layouts.
2. Select import type: Timeline Layout.
3. Choose file or Upload JSON file of settings.
4. And finally click on the ‘Upload file and import’ button.
5. Now you can find a list of import layouts under Layout listing.
Still you do not get the solution for your query? open a support ticket.