Hello, flound.
I want to request two features at your pool.
1. User at port 7777 may select coins he want to jump at. It is good if you focused in 2-3 coins from the list and don't want to mine others. Coins from that list should be mined by profitability also.
For example, I don't want to mine LTC and FTC on port 7777 because as I see their profitability and mining time is very small. Hence, you can't even withdraw them.
You may select another port for such functionality.
Then you can select which ports to mine on directly and put those in you conf. What you described is currently possible already, it just requires you to be less lazy.