WiFi Radar is a Python/PyGTK2 utility for managing WiFi profiles on GNU/Linux.

It enables you to scan for available networks and create profiles for your 
preferred networks. You can drag and drop your preferred networks to arrange 
the profile priority.

WiFi Radar is tested to work with an Intel iwlagn 6300 on Slackware but 
should work just the same for any iwconfig interface. 

NOTE: wifi-radar needs to run as root. You may need to issue: 
  xhost +local:root 
which you can put in your ~/.bashrc or ~/.zshrc etc.

I've installed the program into /opt/radar-wifi and created a 
/usr/bin/wifi-radar script that sets $DISPLAY which defaults to :0.0
For other $DISPLAY's you can edit the script in the slackbuild
directory, or pass DISPLAY=:N.n to wifi-radar on the command line.