IMHO there is a big gap in the documentation and information available for this app.
If you want to plan your holiday in advance by creating all your trips for multiple days, you can add the first trip to your pass with no difficulty, but there is no information on how to add subsequent trips to your pass.
Apparently, it is not possible. Instead, you should be creating one trip, and one trip only, which is added to your pass. Then you add all the journeys to that trip.
So the relation between pass and trip is one-to-one. How confusing is that?! Why have trips at all?What you *should* be able to do (but can't) is to create trips in advance, in the comfort of your loungeroom at home before you even get on the plane if you want, and then add the trips for each day to your pass as you decide you need them.
But apparently not. The trip is created as either connected to a pass, or not connected to a pass. If is not connected, then it never will be, unless you introduce another pass. There is no documentation or help that I could find anywhere to suggest the contrary.
If the documentation included a range of worked examples, that would be a great help. C'mon Eurail, let's get up to speed.
