Besides need to add a few million kinah (gold in aion) you need about 20 - 30 of this: <a href="http://aiondatabase.net/us/item/186000444/">Cube Expansion Coin</a> 186000444 I just did it myself and got the rest of my slots. if 1-2 people can test and respond to confirm it for me that would be great.
- heare the item id to expand cube *_*
- level 11-13 //add 186000444 25
- level 13-16 //add 186000419 25
- copy & paste
- Credit goes to bossss201 for these directions.