How can I control the route to analyse with HyperLynx in a switch?
As I found a solution to my own quiestion some time ago I would like to share it with everyone, as this may happen to many of us.

The solution was the modification of the IBIS file. In my project I was using different switches so I can tell you about different IBIS files. What I did was to force the IBIS model to work with only one route.

See the next capture where I show you the change in the IBIS file.



As you can see I deleted all the routes except the route 3. this allows me to study the route 3 of the switch. I did the same for route 2 and 1. 
In another IBIS file of a different switch I had to do more modifications, so you have to be careful when doing this.

Also some IBIS models aren't correct so the simulation can still give problems.

In sum, it's a slow process but at least it works.

Best regards.