If the mouse option is on (the default is off), tmux allows mouse
events to be bound as keys. The name of each key is made up of a
mouse event (such as 'MouseUp1') and a location suffix, one of the
following:
Pane the contents of a pane
Border a pane border
Status the status line window list
StatusLeft the left part of the status line
StatusRight the right part of the status line
StatusDefault any other part of the status line
The following mouse events are available:
WheelUp WheelDown
MouseDown1 MouseUp1 MouseDrag1 MouseDragEnd1
MouseDown2 MouseUp2 MouseDrag2 MouseDragEnd2
MouseDown3 MouseUp3 MouseDrag3 MouseDragEnd3
SecondClick1 SecondClick2 SecondClick3
DoubleClick1 DoubleClick2 DoubleClick3
TripleClick1 TripleClick2 TripleClick3
The 'SecondClick' events are fired for the second click of a double
click, even if there may be a third click which will fire
'TripleClick' instead of 'DoubleClick'.
Each should be suffixed with a location, for example
'MouseDown1Status'.
The special token '{mouse}' or '=' may be used as target-window or
target-pane in commands bound to mouse key bindings. It resolves
to the window or pane over which the mouse event took place (for
example, the window in the status line over which button 1 was
released for a 'MouseUp1Status' binding, or the pane over which the
wheel was scrolled for a 'WheelDownPane' binding).
The send-keys -M flag may be used to forward a mouse event to a
pane.
The default key bindings allow the mouse to be used to select and
resize panes, to copy text and to change window using the status
line. These take effect if the mouse option is turned on.
