You can mine with any valid address for a currency we pay out in.
Your earnings are (by default) converted to the currency of that address
If you want to keep a specific coin, instead of converting it, just add a payout address for it to your account.
Username: [Your wallet address].[Worker Name]
sgminer example: ./sgminer -o stratum+tcp://ca.simplemulti.com:3364 -u .worker1 -p x -I 13
After a few minutes of mining your stats page should be showing a graph and hashrate for your miners. If it isn't, double check your configs.
Settings link:More configuration of your account is available on your account settings page. Including:
This setup allows you to monitor multiple rigs easily, without setting up a pool manager, and view actual data from each of your rigs, rather than approximations.
Graphs broken down by worker give you a good at-a-glance picture of what is going on.