use an array. Im not sure if you can copy an arrays data to another array simply so its a bit longer than doin it in normal programming
aridale: Consider ArraySource and ArrayDestination, two different arrays.
Have an event (or subevent):
For each element of ArraySource
--> ArrayDestination.at(ArraySource.curX, ArraySource.CurY, ArraySource.CurZ) set to ArraySource.curValue
A simple event that will loop through all the elements and copy them in the destination array.
Of course, you use only the coordinates you need (1D or 2D arrays for example)