Thanks for the reply :-)
Last Thursday I had to move a table of 20 people, and for some reason €2,50 was paid. Because it was busy I had not much time to try things out, so in the end I printed the ticket did a checkout on the table, and entered the items on a new table.
I tried your solution on a test pos today. It is possible to move all items, except one. I fear this is a restriction by design of V2. Is the behavior in V3 different?