Well, I want to be able to do something along the line of a User ID for each miner and these miners could be from anywhere in the world so It's hard to go into manual settings. So it's not that easy as just going into advanced settings and changing an address on each computer due to the limited to no access I have to each. But I also want each transaction to go to the same wallet.
Are you mining them on a pool? If you are solomining, then it is possible to configure the coinbase to display some information about which miner has mined it.
To be honest, I find it very difficult to differentiate the mining rewards between the two miners. Why do you need to be so particular about it?