Per your query: ctrl+a ctrl+a is how I switch between two windows (tmux calls them windows, they're basically tabs). If you want to switch between two panes (di

Per your query: ctrl+a ctrl+a is how I switch between two windows (tmux calls them windows, they're basically tabs). If you want to switch between two panes (divisions inside a window, the equivalent of splitting the screen in a regular editor or visible buffers in vim/emacs), use ctrl-a o. I also have these bindings in my tmux conf for moving between panes painlessly: # use hjkl for moving bind h select-pane -L bind j select-pane -D bind k select-pane -U bind l select-pane -R