To have maps (the "m" key" in instances, you need special addon
and mappack for it. Currently mappack have no maps of high-end instances (Zurhidion Stronghold and Hall od the Demon King). But Hear of the Ocean, Hall of Survivors and Origin, and every other map are aviable.
1. Download the "WoWmap" addon. The link below requires account on forum.runesofmagic.com. But this one addon verion has the patch in it.
http://forum.runesofmagic.com/attachment.php?attachmentid=19180&d=12533751832. Download mappack (eneu)
http://www.mediafire.com/download.php?3zgmjqtejdi3. Extract mappack in the "Interface" dir: (next to AddOns, not inside it)
..\Runes of Magic\Interface\worldmap
4. Done
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