Bethesda Software has recently released another official plug-in for Morrowind, called
the Master Index, a quest to find the ten propylon indices. For completing this quest, the player will receive the Master Index, allowing him/her to travel to any propylon chamber, or return to the Caldera Mages Guild from any propylon chamber. The plug-in is available in the Downloads section of the official site.
Also released is the Exporter for 3D Studio Max, which allows players to create 3D polygon models and import them into the game.