[Shinni]

Most of this is probably not possible because a map and a zone are two completely different things.
A map is what you see on the ingame map, the 2d representation of some area.
A zone is a complete 3d area. Essentially everything separated by a loading screen is a zone. For instance all of the overworld Craglorn is one zone, and each delve in craglorn is another individual zone, but Belkarth is part of the Craglorn overworld 3d area and thus is not an individual zone.
If a player is in Belkarth for instance, the map's name is Belkarth but the zone's name is Craglorn.

So for instance WouldProcessMapClick to return a zoneId/Index wouldn't make any sense because when you have the craglorn map open and your cursor is over belkarth, it would just return the current zoneId.