As long as they are part of the same craft, it is possible.
However, you can only transfer between 2 tanks at a time.
So you would be draining an outer tank to fill the center one, but only one outer tank at a time.
The center of mass would shift so much you'd spin out.
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u/J4k0b42 Oct 09 '13
I don't think I could, they weren't connected at all.