I have done just that with my sydney Star, as the battery requires 3 feeds, one to the main drive, one to each of the thrusters.

the solution is a strip connector take the feed from the battery and join it with the red and black wires from esc input, (RED TO RED, BLACK TO BLACK) and put them inside the terminals on one side of the block, then take the esc's that are left and join red wires to red wires, and black wires to black wires.

the input leads will have a tamiya or deans connector on them,
output leads be blue/yellow or black/red with a gold plug on each wire.

all I did was remove the Tamiya type connectors to the Viper 15's used in the Sydney Star

also on the esc's if they have a BEC system which means the esc also powers the reciever, remove all but one of the red wires out of the tri-wire servo leads, so only one of the esc's is feeding power to the reciever, it is also important that you remeber to turn off all 3 esc's afterwards, easiest way to do this, unplug the spider loom (pictured) from the battery.

see enclosed image