This is just wondering aloud, but is there any way to request assistance from ground staff in CDG before you board in HEL? I know that for tight connections AF is very good about having cars and people to guide you through to your connection swiftly, but I have only experienced this automatically, not on request, when connection times were less than 30 minutes. But with an infant, maybe there is a way to warn them of your arrival and your need for assistance.