My question: I saw the first post that talked about the ability to do merged mining. I was wondering how that worked. I do not see an option for it on my Litecoinpool account page. And, I do not see an option in my Antminer configuration.
Merged mining is handled automatically on the pool's side, you don't need to do anything.
How it works is briefly explained on the pool's homepage, as well as in the FAQ and in the first post of this thread:
Since September 11, 2014, the pool supports merged mining of Dogecoin and other cryptocurrencies, resulting in higher payouts than with a regular Litecoin pool.
Every valid share you submit to this pool is instantly credited to your account at the current pay-per-share (PPS) rate. This rate, expressed in litecoins, also takes into account merged-mined coins such as Dogecoin, resulting in higher payouts than a regular Litecoin pool. Thanks to merged mining, you have to pay no fee; in fact, your earnings may even be higher than with a 0-fee PPS system.
[...] Thanks to merged mining, a technique that allows multiple cryptocurrencies to be mined simultaneously, it is possible to achieve PPS ratios higher than 100%. [...]