Swap ticks don't work after confirmation

Hi, once one side confirmed the offer, and then the other person still adds coins/banknotes to get, the tick that I have them doesn't work (always disappear). Now, if I understood well, the other person cannot confirm our swap, because the new items are not ticked at me.

Well, he could confirm. But still, it would be good if ticks work after confirmation, if we still modify the offer. (And yeah, I know, then don't click on confirm early, but that was an accident.)

Hello,
When you confirm your swap offer, you are basically proposing a swap contract, signing it, and handing it to the swap partner so they can sign it as well.
In my opinion it would be weird to change the contract in the middle of the signature process.
Once you confirm the offer, your partner will have the choice to either accept (based on the coins you checked) or deny. If they deny, both your partner and you are able to change the selected coins and make a new offer.