Пока только вручную. В конфиге кошельков создать, например, BTC1 и BTC2. В конфиге пула поменять вручную
{"active": true,"wallet": "BTC1","algo": "Lyra2v2","tag": "LYRA2V2","poolscale": "M","fee": 1.0,"cweight": 1.0,"folder": "_APARAM1_","command": "_APARAM2_","arguments": "_APARAM3_ _TCP__STRATUM_:4533 -u _WALLET_ -p _WORKER_,c=_TAG_","remark": "*","usewindow": true,"created": "21.08.2018"},
{"active": true,"wallet": "BTC2","algo": "Lyra2z","tag": "LYRA2Z","poolscale": "M","fee": 1.0,"cweight": 1.0,"folder": "_APARAM1_","command": "_APARAM2_","arguments": "_APARAM3_ _TCP__STRATUM_:4553 -u _WALLET_ -p _WORKER_,c=_TAG_","remark": "*","usewindow": true,"created": "21.08.2018"},