Enable Draft Pick Trading on Web only:

1. The League Manager is the only person that has access to enable a draft pick trading in a league.
2. Click on "League Manager Tools" tab
3. Click on "Edit League Settings"
4. Scroll down to the bottom of the page to the "Draft Settings" section and click "Edit"
5. Change "Allow Draft Pick Trading" to "Yes", but make sure the order is set to "Manually Set by League Manager" or "Randomized during League Creation." Otherwise it won't be available
6. Click "Submit Draft Settings" to execute the change