Hi Mike,
However I need a setting for a View-Only connection, how to do that?
Unfortunately, the mobile client only has the Full Control mode so far.
Also, in the window "New connection", I can not specify the port number for a direct connection.
You should first add a new connection. Then click on the tiny "i" in the connection list beside the target connection name to edit its properties. There you will be able to enter the Host port.
Hope that helps.