You add a wine to a range from the wine's settings page. Each wine can be in only one range at a time.
Before you start
Create the range first. See How to create a range.
Steps
Go to Settings > Products > Bottles.
Select the wine's name to open its settings page.
Open the Additional Details section.
In Wine Range, choose the range, for example Single Vineyard.
Select Save.
What happens next
On the Settings > Products > Ranges list, the range's Products count goes up by one.
How to move a wine to a different range, or take it out of a range
To move a wine to a different range, choose the new range in Wine Range and select Save. A wine can only be in one range, so the wine leaves its old range.
To take a wine out of a range, choose No range in Wine Range and select Save.