how to enable Instant Payment Notification Preferences of sandbox account?

in two years ago, i remember how to add how to add the notify url

1. Click Profile on the My Account tab.
2. Click Instant Payment Notification Preferences in the Selling Preferences column.
3. Click Choose IPN Settings to specify your listener’s URL and activate the listener.

but i want to test (don't use simulator) IPN, i can't find the selling preference column under the My account tab~

does it any changes between this two years?

thanks