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Select target pane and enter Prefix-:
break-pane -dPTmux sends target pane to a window in the background (-d flag) and prints information (-P flag)
Select pane below target then enter Prefix-:
join-pane -vs 1:2.0It tells tmux to split target pane vertically (-v) and to join the source pane (-s) with identifier 1:2.0, where 1 is the pane number, 2 is the window number