Molanic, if you add your plants to your "Plant List" (not the same as the swap list), you can add the ones you want to swap directly from the Plant List using the icon on the right-hand side of each entry that looks like 2 curved arrows forming a circle.
Unfortunately, I don't believe there is any way to add to your plant list from a delimited file.
Also, to add to your Plant List, your entry will need to match an entry that's in the ATP Plant Database; if there is no matching entry in the database, you can request that one be entered. On the other hand, entries in your swap list can either be linked to the plant database, or can just be a typed-in entry.
That all sounds quite confusing when I re-read it; it's really much simpler than I made it sound!
Edited to say: This is an article that you may find helpful in terms of getting around and using the features in ATP:
http://garden.org/ideas/view/d...
