[asid61]

Einstein will be all six stackers or two six stackers and a noodler with peripherals. Or six stackers with noodler abilities. However, looking at a point chart. four totes gets you almost as much as five anyway if you can noodle it.

To stack, simply lift an existing stack and slide a tote underneath it. Most forked lifters should be able to do this to get very high stacks up to six plus bins without issues.