Obviously, this is a subjective matter. There are different ways of doing this,
I like to edit the files.

IceWM comes by default with alt-tab to switch windows, alt-F10 to maximize,
alt-F9 to minimize the screen, the Windows key will give you the main menu. In
the main menu click on Settings > Focus and choose your favorite, (i like
"Sloppy"). Do it again, and click on Themes and choose.

NOTE: winkey (Windows key) + space bar will give a 'run box' at the taskbar by
default. from where you can launch apps a la gmrun.

If you go to the icewm site: www.icewm.org -> IceWM Manual you get all the keybinds
and mouse commands. It's a very worthwile read, it will teach you how to lock
your screen (xtrlock), move a window to another workspace, screensavers, and so
forth, how to start an app in a different workspace when you enter the X system,
etc.

Congratulations! you're ready for prime time. Just point and click.

But if you want to increase your speed, if you're a geek wannabe, if the Windows
way of working bring tears to your eyes, then KEYBINDINGS are for you.

My configuration uses 4 files: preferences, keys, winoptions, and prefoverride.

Preferences deals with the window manager's behavior.
Keys with keybindings.
Winoptions with options that alter the windows.
Prefoverride changes the default keybinds for the ones you like.

You CANNOT edit the global file, so you have to create them and put them in your /home.

The global file resides in /usr/share/icewm/preferences where all the
preferences for IceWM are, copy/paste the ones relevant to your way of working,
and put them in your ~/.icewm/preferences.

Now create these files in your /home, and edit them as USER. The directory .icewm already exists.

$ touch .icewm/preferences
$ touch .icewm/keys
$ touch .icewm/winoptions
$ touch .icewm/prefoverride

PREFERENCES
So now all you have to do is edit .icewm/preferences as USER.

$ nano .icewm/preferences

Choose the preferences you like from the global file
(/usr/share/icewm/preferences) and copy/paste them into your .icewm/preferences.

Every preference consists of 2 lines, both of which are commented (#), uncomment
(erase the hash mark) on the second line of the preference, and add 1 or 0
(zero) at the end.

1 = enables the preference
0 = disables it.

save/exit and RESTART icewm - Menu >Logout >Restart icewm for it to take
effect.

Clear as mud?

Example:

# Hide title bar when maximized
#HideTitleBarWhenMaximized=0 # 0/1

After editing it, it should look like this if you wanted it enabled:

# Hide title bar when maximized
HideTitleBarWhenMaximized=1

Restart icewm, restart icewm, restart icewm

Me? I copied/pasted my personal preferences I stored
in my web mail. It takes me 5 minutes to config icewm.

Here's my .icewm/preferences:

    OpaqueMove=0
    OpaqueResize=0
    SmartPlacement=1
    MenuMouseTracking=1
    ModSuperIsCtrlAlt=1
    UseMouseWheel=1
    QuickSwitch=1
    AutoReloadMenus=1
    ShowProgramsMenu=1
    ShowThemesMenu=1
    ShowHelp=1
    TerminalCommand="lxterminal"
    ShutdownCommand="sudo poweroff"
    RebootCommand="sudo reboot"
    WorkspaceNames=" 1 ", " 2 "

    TaskBarAutoHide=0
    TaskBarShowClock=1
    TaskBarShowAPMStatus=0
    TaskBarAtTop=0
    TaskBarShowAPMStatus=0
    TaskBarShowAPMTime=0
    TaskBarShowMailboxStatus=0
    TaskBarShowWindows=1
    TaskBarShowShowDesktopButton=0
    TaskBarShowTray=1
    TaskBarShowWindowIcons=0
    TaskBarShowCPUStatus=1
    TaskBarShowNetStatus=0
    TaskBarShowCollapseButton=1
    TaskBarWorkspacesLeft=1
    TimeFormat="%R"
    TaskBarShowShowDesktopButton=0
    TaskBarShowWindowListMenu=1
    TaskBarShowMailboxStatus=0
    TaskBarMailboxStatusBeepOnNewMail=0
    NormalTaskBarFontName="-*-sans-medium-r-*-*-*-100-*-*-*-*-*- *"
    NormalTaskBarFontNameXft="sans-serif:size=10"
    ActiveTaskBarFontName="-*-sans-r-*-*-*-100-*-*-*-*-*-*"
    ActiveTaskBarFontNameXft="sans-serif:size=10"
    HideTitleBarWhenMaximized=0

save/exit your favorite editor.

KEYS
Same. Choose what you need. I erased everything and pasted my keybinds.
This is my .icewm/keys:

$ nano .icewm/keys

Example:

    key "F1" lxterminal
    key "F2" xfe
    key "Ctrl+f" firefox
    key "Ctrl+g" google-chrome-stable
    key "F7" mirage
    key "F8" hexchat
    key "Print" lxterminal -e scrot -cd 10

    #Sound
    key "Ctrl+Down"      amixer -q set Master 9%-            # lower volume
    key "Ctrl+Up"        amixer -q set Master 9%+             # raise volume

Save/exit your editor.

Ctrl+Up arrow increases volume.

Ctrl+Down arrow decreases volume

If you get no sound go to alsamixer as USER and unmute with M key.

$ alsamixer

Needless to say choose your favorite applications and keybinds.

I have no use for the Fn keys, but if you do, just add Alt or Ctrl or Super (winkey) example:

key "Alt+ l" leafpad
key "Ctrl+f" firefox

SOUND
A word about sound. In my case, I haven't had good luck with Pulseaudio, so I use ALSA.

$ apt-cache search alsa

Installed the alsa packages plus aumix and menu.

# apt-get install aumix menu alsa-lib alsa-plugins alsa-utils

Config the sound volume:

$ alsamixer

Unmute sound with letter M

WINOPTIONS
Go to .icewm/winoptions and paste this, I'm only interested in
maximizing my windows:

$ nano .icewm/winoptions

lxterminal.Lxterminal.startMaximized: 1
hexchat.Hexchat.startMaximized: 1
firefox.Firefox.startMaximized: 1
xfe.Xfe.startMaximized: 1
mirage.Mirage.startMaximized: 1

save/exit

PREFOVERRIDE

$ nano .icewm/prefoverride

And paste this:

KeyWinClose="F4"
KeyWinMaximize="F12"

save/exit

So now I close applications with F4 (boom! gone) and maximize the windows with
one key (F12), instead of the default Alt+F10.

THEMES
I'm not much for themes and eye-candy, my thing is simplicity and speed.

Go to www.box-look.org, click on "icewm themes" in the left column, if you know
the name of the theme, click on "alphabetical". Click on Download. There are
over 400 themes for IceWM in this site. There are a bunch on the right column on
the site.Download the theme file /home/<yourusername>/Downloads (automatic with
Firefox).

I launch xfe (my file manager) as ROOT, I find the theme in Downloads,
right-click on it, and choose "Extract to" in the next screen at the bottom I
type the location where to be extracted, (/usr/share/icewm/themes) press
Enter, and that's it, the new theme appears in Settings>Themes from the main
menu. Click on it and you'll have a new theme immediately.

NOTE: Restart icewm every time you do changes on the window manager.

Main menu > Logout > Restart IceWM

Happy trails,
macondo aka macondo123, Lou

bobo@foo:~$ inxi -Fz
System:    Host: foo Kernel: 4.9.0-0.bpo.3-amd64 x86_64 (64 bit) Desktop: IceWM 1.3.8 Distro: Devuan GNU/Linux 1
Machine:   System: Gigabyte product: N/A
           Mobo: Gigabyte model: H61M-DS2 v: x.x Bios: American Megatrends v: F6 date: 09/30/2014
CPU:       Dual core Intel Celeron G1610 (-MCP-) cache: 2048 KB
           Clock Speeds: 1: 1721 MHz 2: 1691 MHz
Graphics:  Card: Intel Xeon E3-1200 v2/3rd Gen Core processor Graphics Controller
           Display Server: X.Org 1.16.4 drivers: intel (unloaded: fbdev,vesa) Resolution: 1600x900@60.00hz
           GLX Renderer: Mesa DRI Intel Ivybridge Desktop GLX Version: 3.0 Mesa 10.3.2
Audio:     Card Intel 6 Series/C200 Series Family High Definition Audio Controller driver: snd_hda_intel
           Sound: Advanced Linux Sound Architecture v: k4.9.0-0.bpo.3-amd64
Network:   Card: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller driver: r8169
           IF: eth0 state: up speed: 1000 Mbps duplex: full mac: <filter>
Drives:    HDD Total Size: 500.1GB (0.8% used) ID-1: /dev/sda model: TOSHIBA_DT01ACA0 size: 500.1GB
Partition: ID-1: / size: 44G used: 1.8G (4%) fs: jfs dev: /dev/sda3
           ID-2: swap-1 size: 2.10GB used: 0.00GB (0%) fs: swap dev: /dev/sda2
Sensors:   System Temperatures: cpu: 29.8C mobo: 27.8C
           Fan Speeds (in rpm): cpu: N/A
Info:      Processes: 95 Uptime: 2:40 Memory: 521.8/3851.7MB Client: Shell (bash) inxi: 2.1.28

PS:  I launch it from my .xinitrc:

exec icewm