Submit a new trade - You have to choose unit monster or tradeable item to start trade. Also you have to choose at least one Trade Candidate for trade. There are 2 boxes of candidates with 5 slots for candidates. Personally I hope they add 5 slots for Trade Unit in future...
Maximum number of trades is limited with Trade Tickets, commonly you have 5 tickets per day...
Note: These tickets are also needed for gifting.
My active trades - List of your active trades.
Your Trade History - List of all your completed trades.
Search Specific Trades - You can search for specific monster or item you want.
Browse New Trades - List of 50 latest submitted trades.