Joe, thank you for the suggestion. Core Shell does not have Quick Connect.
I know lots of ssh and sftp apps provide similar feature, but for Core Shell, you can do the task in a more flexible way.
First, install Core Helper:
After Core Helper installed, you are able to open a local shell using shortcut Option + Command + N or T
Type ssh command in the newly opened shell window, and you are all set.
Compared to "Quick Connect", using local shell means you can control the connection in a very flexible way: you can break the connection at any time, change ssh options on connection failure, and bash will take care of command history.
Since Core Shell can open local shells, I see little reason to add a separate "Quick Connect" function.