Maytag magic chef

I want to switch this stove from NG. to Propane. I have already turn the burners down 2 1/2 times, but the bottom oven is where I cannot figure out. It has a cap with NG and LP on it. Do you flip the cap over with the NG facing down? or leave it up?

The following may help.
https://www.whirlpool.com/digitalassets/MLPDF/Installation%20Instructions%20-%208101P592-60.pdf