The multiple character control feature of Sword of the New World sets the game apart from every other MMORPG on the market. Multiple Character Control is difficult to master due to Sword of the New World's buggy interface, but the bad coding will be fixed in upcoming patches.
The greatest annoyancein Sword of the New World for a left-handed mouse user is the game's inability to recognize a person who uses a left-handed mouse in Windows and switch the buttons accordingly.
The official Sword of the New World forums are a good place to learn what this unique feature has to offer, even if issues like server lag and poor coding prevent Multiple Character Control from reaching its full potential.
A player can control more than 1 character at a single time. In the world of Granado Espada, a player can control up to 3 characters as he moves throughout the world. With 5 classes, this makes a large combination of classes possible. A wide selection of hired characters that can be purchased from the company, earned through quests or special events further increases the total of possible class combinations in Sword of the New World.
Sword of the New World's interface is quirky and often does not work as intended. Server lag can delay the execution of commands such as a well time heal. While this is an annoyance, it is easy to learn to use the game's Multiple Character Control features. It is little different from playing 1 character in other mmorpgs.
Underneath the hit point, mana, and experience bars for each character on the screen is a series of boxes with a letter underneath. To use this ability, a player either clicks on the box or hits the corresponding letter on the keyboard. With Multiple Character Control, the member of a family's player with the ability or spell will then use it, or at least that is how the system is supposed to work. Server side lag often causes delays.
The next fault is not related to multiple character control, but due to the fact that the game can be played without much, if any, human intervention required. The AI causes the characters to fight less efficiently than they might have if a human intelligence were directing them, but it is possible to just leave the game running and switch zones every few hours to level up. (At least until level 50 at any rate, when character no longer automatically resurrect themselves.)
If a player stands behind the characters and does not choose the auto-level advancement option that the game allows, he can level his characters more efficiently than the random targeting processed used for the NPC AI.
Sources:
Sword of the New World In-game help
Sword of the New World Website