The argument and key letter space is getting cramped!
Here's what they do, to help select holes for new stuff:

	-a	    -A		a	    Shift-A	Ctrl-a	    Ctrl-A
a	freq_axes   time_axes	freq_axes~  time_axes~
b	beats_x_bar					Blackman
c	colormap		cycle_colors
d		    2ble_softvol mv_disp_time mv_disp_time			Dolph
e	fit/expand
f	fft_freq    fullscreen	fft_freq*2  fft_freq/2	fullscreen~
g	guitar			guitar
h	height	    help_args				Hann
i	logmax			logmax-1dB  logmax+1dB	logmax +/- 1/6th dB
j	jobs
k	keyboard    help_keys	keyboard		Kaiser
l	left_bar		left_bar		redraw
m	mute
n	minfreq			next_file		Nuttall
o	output_png		output_png		output_wav
p	play	    ppsec	pause_off   pause_on	show_params
q				quit			quit
r	right_bar   fps		right_bar		recalculate
s	score	    shuffle	score
t	start_time  tiny_font
u		    minimized
v	softvol	    version
w	width	    window_fn				next_window prev_window
x	maxfreq			zoom_out*2  zoom_in*2
y				zoom_out*2  zoom_in*2	zoom_out+2  zoom_in-2
z	dyn_range		dyn_range+6 dyn_range-6 dyn_range-1 dyn_range+1
0				no_bar_lines
1-9				bar_lines
F1-F12				bar_lines
