#3 Use sliders and radio buttons for component properties

[Curt Cox]

While they aren't as space efficient, the use of
sliders and radio buttons would be more convenient than
the current use of drop-downs. Also, the current range
of grid* values [1..5] is inadequate for many layouts.

JSlider
http://java.sun.com/j2se/1.4.2/docs/api/javax/swing/JSlider.html

JRadioButton
http://java.sun.com/j2se/1.5.0/docs/api/javax/swing/JRadioButton.html