SWAP LEVEL sets what can happen when you attempt to PINSWAP.
If you set SWAP LEVEL = 0, then you are not allowed to PINSWAP.
If you set two pins to SWAP LEVEL = 1, then those two pins are interchangeable, eg. a resistor.
If you set another two pins to SWAP LEVEL = 2, then those two pins are interchangeable, but not with other pins that are not set to SWAP LEVEL = 2.
Set both pins to SWAP LEVEL = 0. You don't ever want to swap pins on a polarized capacitor or a diode.What would be the swap to polarized capacitor