Just got some probaly simple questions on exspanding the doepfer system.

I have two rows of modules that add up to about 480mA. The power
supply's max is 1200mA. Is it then possible to exspand only with an
extra case and bus board and connect it to original power supply.

p.s I'm quite young and not eclectonic wiz and don't plan on carring
out any procedure myself just wandering the process of power
distribution to the modules through the bus boards work. Any help
would be appreatiated.