Divine Tree

Shortly after creating your character and using your job boost, the main quest will send you to the Wasteland and after a short mission will unlock the Divine Tree.  

This has been removed from the game!  Fourth Job skill points are now obtained by earning Job Levels from mobs.

The third tab shows various buildings out in the Wasteland zones.  These buildings change the weather, sell items, and do other tasks.

This facility controls weather throughout the zone and there are two: one out in Wasteland, the other out in Maple Leaf Faramita.  Weather grants zone wide buffs based on the weather selected and also influences Elite monster spawns.

You can freely change the weather by going to this station and selecting the weather you want the zone to experience.  This effect lasts for hour real-time and is shared by everyone throughout the zone so if someone changed the weather recently you'll have to wait to change it again until this time is up or try to do so on another channel.

One of the facilities sells various items, many of which are used to help kill certain elite monsters.  This facility also wells Lucky Bags which give you zeny and up to 100 can be opened per day. Conjury Power Potions are also really good for leveling other jobs as they give you a bunch of base exp and job exp.  Once your Divine Tree is finished you can spend your materials on these things until you're strong enough to move onto newer content.

The Ghost Altar allows you to freely change to another class which has preset skills and stats.  This lasts until turned off which can be done by by pressing the icon at the bottom center of the screen.  You may want to consider this if your class is an awful farmer as this is free and these classes are quite powerful for this zone.

This device allows you to force an elite to respawn by using 100 Ancient Remains and 1 Maple Colored Agate.  Once you submit the materials to it in the first tab, choose the second tab and pick a monster to revive.  I have not used this myself but it looks like you can only revive monsters a total of 3 times per day.

It appears that there is a timer at the top center of the screen so I'm assuming that this facility can only be used by someone every half an hour like the weather station.

Once you unlock access to Maple Leaf Faramita you'll gain access to the Frost Statue which is inside the Frost Domain map in this new area.  This statue unlocks account wide stat bonuses in exchange for Air of Chaos, a material earned exclusively from farming in Maple Leaf Faramita and the Frost Domain maps.  

You can hold up to 12,000 Air of Chaos but as you gain more of this currency you'll start to notice monsters spawning as aggressive, dark variants of themselves.  At around 8,000 Air of Chaos every monster will spawn in this state but these aggressive monsters start dropping Crystal of Chaos, an item you can use to open a shop to purchase various materials with.  These crystals can be used to purchase whatever you like though note that you can only buy 10 nightmare chests per week.

For info on this please visit the Louyang Dailies Article for more information.