Bug 72285 [KeyBindings] registry: Cannot assign keybinding to general views
It seems the views have to do something special to show up on the "Views" keybinding list. It would be nice if all views showed up automatically. Of course then (or even now) there would be so many views that the current level of grouping is not sufficient.
bundles/org.eclipse.core.commands/src/org/eclipse/core/commands/Category.java
*/
	private Collection categoryListeners;
	/**
	 * Constructs a new instance of <code>Category</code> based on the given
	 * identifier. When a category is first constructed, it is undefined.
	 * Category should only be constructed by the <code>CommandManager</code>
	 * to ensure that identifier remain unique.
	 * 
	 * @param id
	 *            The identifier for the category. This value must not be
	 *            <code>null</code>, and must be unique amongst all
	 *            categories.
	 */
	Category(final String id) {
		super(id);
	}
	/**
	 * Adds a listener to this category that will be notified when this
	 * category's state changes.
	 * 
	 * @param categoryListener
	 *            The listener to be added; must not be <code>null</code>.
	 */
	public final void addCategoryListener(
			final ICategoryListener categoryListener) {
		if (categoryListener == null)
			throw new NullPointerException();
		if (categoryListeners == null)
			categoryListeners = new ArrayList();
		if (!categoryListeners.contains(categoryListener))