I know this isn't possible now, but on a wish list, I would like to be able to assign multiple monitors to a link on a map. As an example, a link between two Cisco routers connected via T1 using serial interfaces can be down but if you are only monitoring the status on one side and the other side has the issue and not the interface you are monitoring, then the link will be represented as being up even though it is not.
-Charles S