There is not an icon(at the moment) for the openssh. Once you install it. It is just there.
The way to find out is go to your terminal on your app and type in
Use your ip address on your iphone where the x's are.
Then type in the password "alpine" with out the quotation marks.
Note: When you type in the password you will not see it when you type it. Don't worry, it is there.
Presto. You have officially ssh'd into your iphone.
If you want to change the passwords, after you have typed in the password the first time. now type
It will ask you to type in a new password. please do so. It will then ask you to retype your password. Please do. Now your password has changed.
So next time when you want to ssh into your device, type in
Now use your new password.
PLEASE NOTE: If you make any changes on your device such as add files or whatnot. When you are finished you will have to restart your phone in order for them to take effect.
Also, not sure about the boss prefs with a switch. I do not use that app.