As mentioned in another post of mine, my rex didn\'t have any manuals :(
however found some useful manuals and on for the fc-commander as well. click on the big pdf logo to download,
hope it helps!
link: http://www.jdmlegion.com/KnowledgeBase/Other%20manuals/Apexi-Power-FC-Hand-Commander-instruction-manual-%28RX7-FD3S%29-0dd3baba-9056-4211-b74e-bdd151deb97e (http://www.jdmlegion.com/KnowledgeBase/Other%20manuals/Apexi-Power-FC-Hand-Commander-instruction-manual-%28RX7-FD3S%29-0dd3baba-9056-4211-b74e-bdd151deb97e)