It's in the config file.
change claymore-zec to claymore-eth, then edit the start.bat in the miner folder
By the way, you are now "donataor" so you can do this from advanded panel at runtime
Thanks. I edited start.bat in eth miner folder to eth solo mining. But it shows that i mine eth+sia.Whhaa?

Hm. Pushed start.bat in webadmin, it showed me same config as in folder. I applied it and it started to mine eth only.
Algo and speed colums are refreshing very slowly. I have been mining solo eth for 5-7 minutes but it showed me eth+sia in colums, log was correct, eth only. Refreshing did nothing.