This page allows you to approve, reject or delete a trade request. To approve trade/drop requests, go to the Schedule tab - > Manage Trades. Pending approval requests will also show up on this page. You will need to click each of the pending shift drop or shift trade request from the list to approve or reject them.
Hover your mouse cursor over the Status box to display the icons for Approve, Reject a request.
You can Remove the Shift Trade or Drop requests from the 'Manage trades' main page by selecting each of the shift trade/drop request and then clicking the Remove button from the upper right side of the page.