tmux config

Prefix: C-Space

Hotkeys (prefix required)

Navigation

Key	Action
a	fzf session picker
w	fzf window picker
s	enter stack mode (see below)
h/j/k/l	select pane left/down/up/right
1-9	select window by number
n/p	next/previous window (repeatable)

Sessions & Windows

Key	Action
b	break window out to its own session
.	move window to another session
$	rename session
,	rename window
c	new window
&	kill window
x	kill pane

Panes

Key	Action
|	split horizontal
-	split vertical
m	move pane to another window (prompts)
M	break pane out to its own window
V	mark pane, then v to join below
z	toggle pane zoom
</>	swap pane up/down (repeatable)
H/J/K/L	resize pane (repeatable)
P/N	swap window left/right (repeatable)

Layouts: W then...

Key	Action
1	even-horizontal (side-by-side)
2	even-vertical (stacked)
3	main-horizontal (big top)
4	main-vertical (big left)
5	tiled
=	equalize, preserve layout

Stacks: s then...

Key	Action
2	new 2-pane stack
3	new 3-pane stack
c	new stack with claude in top pane
s	choose-session (built-in tree)

Misc

Key	Action
r	reload config
C-k	clear pane + history
S	toggle synchronized panes
=	equalize panes

No-prefix hotkeys

Key	Action
Alt-Up/Down	select pane up/down
Cmd-Opt-Up/Down	select pane up/down (iTerm2)
Ctrl-Left/Right	select pane left/right
Shift-Left/Right	delete word backward/forward
PageUp/Down	enter copy mode / scroll

Bash commands (.tmux-rc)

Command	Action
tml [pattern ...]	list sessions (with window names, time, status)
tmlw [pattern ...]	list all windows, optionally filtered by session
tma <session>	attach to session
tmc <session>	attach or create session
tmn <name>	new session
tmk <session ...>	kill session(s)
tmkw <sess:win ...>	kill window(s)
tmka	kill all detached sessions
tms <session>	switch to session (from within tmux)
tmr <name>	rename current session
tmpo [name]	pop current window out to its own session

Copy mode (vi keys)

Key	Action
v	begin selection
y	copy to clipboard
C-Up/Down	scroll 5 lines
Mouse drag	select + copy
Double-click	select word + copy
Right-click	paste