Hi! My friend was just given a free interrail pass and a group of friends have decided to join her (including myself) this summer to do some travelling around Europe. I’ve heard that groups can be added onto her pass but I can’t find any information about this on the website, will the rest of us be able to travel with her pass or will we need to each purchase our own? Apologies if this is a silly question, I just thought it would be better to ask before proceeding in case the rest of the group may be able to save some money. Thanks!