Rule of thumb: use the same ratio of water to rice as you would for the evaporation method of the rice variety
However - good idea to verify your rice cooker recommendations as not all rice cookers cook with the same ratios of water to rice, you may have some trial and error.
TIPs: IF YOU FIND THE RICE COOKING LIQUID SOMETIMES BUBBLES UP TOO MUCH :
1. You can rinse some of the starch off your rice just by rinsing the rice under cold water until the water runs almost clear 2. If you add a bit of butter or oil to your cooker, the liquid won't bubble up nearly as much 3. Take a piece of paper towel, fold it half and tuck the middle part of the long edge just under the edge of your lid near the vent hole, the paper towel will absorb the excess.