tmux copy/paste configuration

tmux.conf

## tested with tmux 3

# mouse mode
set -g mouse on
setw -g mode-keys vi

# selection with mouse copies to clipboard in addition to the default action
unbind-key -n -T copy-mode-vi MouseDragEnd1Pane
bind-key -T copy-mode-vi MouseDragEnd1Pane send-keys -X copy-pipe-and-cancel "xclip -in -sel primary"

# middle click to paste from the clipboard
unbind-key MouseDown2Pane
bind-key -T root MouseDown2Pane run "tmux set-buffer \"$(xclip -o -sel primary)\"; tmux paste-buffer"