How do I access remote the remote shell after login success?

After Core Tunnel has successfully connected to a username@192.168.77.77 how do I access the machine shell?

I jumphost > then connect to another machine… I need to be able to issue shell command after

Core Tunnel is a port forwarding manager, shell window is not integrated for the moment. If you need to log into remote shell, please wait some time, we’re baking a new app – Core Shell.