I see where my antminer X3 is supported but none of the coins are listed and the unspecified cryptonight options do not produce any results.
Is there a way to add coins or something else I need to do?
Awesome Miner can monitor any Antminer, including Antminer X3, no matter which pool you are mining on and no matter which coin you are mining.
There are not many CryptoNight coins available these days, but you should be able to see a few if you go to the Coins tab in Awesome Miner and sort by algorithm. Please note that the coins in Awesome Miner only relates to the display of Revenue and Profit for the mining. You can mine any CryptoNight-based coin on any pool on your Antminer.
Which pool/coin are you mining on right now?