Not jumping on the OP.
IMO I really think some new and old members need to take a look at everything that is out there. Take some time and review all the areas as some have changed. You may find what you are looking for or find an easier way to do something.
What we have now: Reports
1. Match items on your Wantlist with items on other members' For Sale / Trade lists: filtered by sports/non sports. Shows sets (not players) that can be filtered by log in date. Shows all the cards then pick card to see the members who have it.
2. Match items on your For Sale / Trade list with items on other members' Wantlists filtered by sports/non sports. Shows sets (not players) that can be filtered by log in date. Shows all the cards then pick card to see the members who have it.
3. Recent Matches: Shows: For Sale / Trade and Want list shows cards that matched that date. Then view by sets that can be filtered by log in date. Show all the cards then pick card to see the members who have it.
4. Trade Matching: (2 way trades) Sorted by lowest number of cards on one side and highest number on top of list by members. It shows each card even doubles on both sides. Can be filtered by last log in date.
5. You can view each card for members who have them for sale/trade, want or in their collection.
6. You can use the report Browse members with items on their Wantlist to find members with cards you want.
7. You can use the report Browse members with items on their For Sale/Trade list to find members with for you.
8. There are other areas that take you to the same places.
As of now it takes time and a lot of clicks to get some of the things we want. (All AU of player X that are for sale/trade). There would be a lot of filters if everyone could get what we wanted filtered the way we wanted it.
So, there is no easy way as of now to do what you want. (Only all members with ALL the AU of player X which have them for trade/sale in one listing.)
There are 6 New Feature Request about Trading Matching area. Not sure if they are really about the Trade Matching report (2-way trades).