fast switching to a specific window in a different tmux terminal-session

tmux and tmuxinator ( mux ) allow the usage of multiple shells in one
or more sessions.

The Terminal can be detached from the session and everything is still
running in the background.

If you have multiple sessions in tmux running ( perhaps configured with
tmuxinator ), you can switch between the sesssions with
<Ctrl>-<a><s> or <Host-Key><s>, which shows all sessions.

Per accident I found, that you can show all windows in a session by
moving the selection to the session an pressing the <right-Arrow-Key>
( left-Arrow-Key closes the view of the windows ).

After selecting the window in the session, you're directly put into this