Hey Sandy,
Sorry for the confusion there!
Swap is offered on a trial when you have an 'off' day where only 1 round of Jumpers or Regular is offered.
What is means is you can opt in to running a second round of those classes, you just have to drop a different round from your overall day.
The easiest way to explain it is that you can't have more than 2 rounds of any class, And you can't have more than 4 jumping rounds.
so if you wanted to do 2 chances and 2 Jumpers you can, you just need to NOT enter Regular.
Or 2 Chances, 1 Jumpers and 1 Regular is another of the many options.
The online entry doesn't reflect the swap option because the software doesn't really allow it. So we just send out a confirmation email the week before the trial asking people if they want to swap any classes

2) Online entry is correct, and we just got that premium fixed as well
