It's so simple. Just get a cup of any type like measuring, coffee cup, drinking glass any will do.

Fill your cup with rice put into the pot.

Then fill the same cup with cold water and put it into the pot.

Then bring it to a boil.

Once that happens lower to a simmer and place a tight-fitting lid (very important) so no steam escapes.

Put a timer on for 10 mins. Do not open the lid.

Once time has gone, turn off the heat move the pot to a cold section of the cooker, and let it steam for 5 mins and that's it perfectly cooked rice every time.