linux-gui-icewm-menu-toolbar-configuration
if you're just interested in quick and dirty usefulness after a default installation (very much my style)
use your favorite text editor to modify the following, then when you use "startx" the changes should be immediately apparent (you can use ctrl+alt+backspace to exit out of your X session back to CLI)
TOOLBAR
mkdir /home/username/.icewm cp /etc/X11/icewm/* /home/username/.icewm
chown -R * /home/username/.icewm
nano /home/username/.icewm/toolbar
prog leafpad /usr/share/pixmaps/leafpad.png leafpad prog xterm xterm x-terminal-emulator prog filezilla /usr/share/pixmaps/filezilla.png filezilla prog opera /usr/share/pixmaps/opera.xpm opera prog rdp /usr/share/pixmaps/rdp-16x16.png rdp
note that you'll need a .png or .xpm to be an icon
HOT KEY MAPPINGS
nano /home/username/.icewm/keys
key "Ctrl+Alt+n" leafpad key "Ctrl+Alt+o" opera key "Ctrl+Alt+m" alsamixer key "Ctrl+Alt+j" xterm
You could learn to modify the menu nano /etc/X11/icewm/menu