User Manual Fisher & Paykel DD60DAX8 DishDrawer

In our experience with an earlier model, yes, either independently or simultaneously as controls are on each individual drawer

Yes they can as they have their own control panel

The installation instruction manual for the dishwasher show that the dishwasher *must* be secured to the benchtop or sides to prevent tipping.

Press the rectangle button to light up either too or bottom drawer to choose which one to start, them press rectangle button again and to light up up other drawer and press start again.

Unplug the dishwasher or turn it off at the power supply.
Unclip the glass supports (if fitted) from the rack wires and fold up all the foldaway cup racks, so that they are all upright and close to the top.
Remove the base rack carefully. Lift from the back first to prevent knocking the detergent and rinse aid dispenser.
Lift the spray arm and shake any foreign material out. Rinse it clean under running water and wipe with a damp cloth.
Replace the spray arm back onto the impeller.
Replace the base rack, lowering its front edge into position first.
Plug the dishwasher back in or turn it on at the power supply