How does it work trading swaps?

Just bought the game (once I confirmed it has the Aprons and complexity of the caps, etc. which is the fun / challenge of the NBA). Thanks for the work to put those in. Great deal of value to have those. Afraid of the potential challenges these create down the line (in a good way) - even though I will probably stay out of the Aprons, it will still constrain and require more thinking ...
Situation: Trying to use Commissioner mode to force draft pick trades, since I'm using Real World mod and it's not balanced for some teams to currently have stars for which they gave up all their drafts, and still have all their draft picks.
Thus leads to 2 questions:
1) I forced an accidentally incorrect trade (swapped a 2nd round pick instead of 1st). Since it's a swap, it didn't let me reverse it / trade back the swap. Did I do incorrectly, and there is a way to force back the swap between the 2 originally swapping teams?
2) What is the Worse swap when conducting a trade? When proposing, one team has the better and the other the worse. What are the mechanics of using Worse when proposing? Why not just add the Better swap on one team's side? I am certain there is logic, but I'm not able to wrap my head around it.
Situation: Trying to use Commissioner mode to force draft pick trades, since I'm using Real World mod and it's not balanced for some teams to currently have stars for which they gave up all their drafts, and still have all their draft picks.
Thus leads to 2 questions:
1) I forced an accidentally incorrect trade (swapped a 2nd round pick instead of 1st). Since it's a swap, it didn't let me reverse it / trade back the swap. Did I do incorrectly, and there is a way to force back the swap between the 2 originally swapping teams?
2) What is the Worse swap when conducting a trade? When proposing, one team has the better and the other the worse. What are the mechanics of using Worse when proposing? Why not just add the Better swap on one team's side? I am certain there is logic, but I'm not able to wrap my head around it.
