There are three ways to duplicate a plan...
1 - In the ‘My plans’ area
Step 1 - Click on the ‘...’ in the right hand corner of any plan and select ‘Duplicate plan’
Step 2 - Click on ‘Go to the duplicated plan now’
Step 3 - Edit plan name
2 - In the ‘Dashboard’ area
Step 1 - Click on the ‘...’ in the right hand corner of any plan and select ‘Duplicate plan’
Step 2 - Click on ‘Go to the duplicated plan now’
Step 3 - Edit plan name
3 - Duplicating a plan while you're inside one of your plans
Step 1 - Click ‘...’ in the top right and select ‘Duplicate plan’
Step 2 - Click on ‘Go to the duplicated plan now’
Step 3 - Edit plan name