Although Navigraph has integrated Heliports into the charts data, one important Heliport in Switzerland is missing: LSEZ - Air Zermatt heliport. This heliport is the home base of Air Zermatt from where rescue, transport and tourist flights get performed in the lovely Matterhorn-Area.
As this heliport has an own ICAO code I think it is worth to be added in Navigraph - MSFS and X-Plane both have this heliport as well as usable heliports.