How to take back control to Docker Quick Terminal once SSH done ?

[Snehil03]

Hello,

I have created new docker machine via
docker-machine create dockernew --command
it successfully create new dockernew instance then
docker-machine ssh dockernew -- connect to newly created instance.

Question :-

1. How to go back to Docker Quick Terminal instance again ?
2. How to update ip of newly created instance ?

Thanks,
Snehil Belekar