Hi doraemon,
You can add "setdefault = false" to the configuration file thnuclnt.conf under ~/.thnuclnt/ folder:
autoupdate = 15
automap = true
autoid = 0
updatecount = 1
editcount = 0
connector svc {
protocol = listen
interface = /home/<user>/.thnuclnt/svc
setdefault = false
}