Bug 300846 Add "Resolve Values" switch to Path Variables property page
HEAD Table showing path variables for a resource has 3 columns: Name, Value and Resolved Value. Given the fact that values are rather long the third column is hardly visible. My suggestion is to remove the third column and add a switch to resolve variables in the second column. I'll put up a mockup in a minute...
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/ide/dialogs/PathVariablesGroup.java
* @return boolean the enabled state of the group's widgets.
     * 	 <code>true</code> if called prior to calling <code>createContents</code>.
     */
    public boolean getEnabled() {
        if (variableTable != null && !variableTable.isDisposed()) {
            return variableTable.getEnabled();
        }
        return true;
    }
    /**
     * Returns the selected variables.
     *  
     * @return the selected variables. Returns an empty array if 
     * 	the widget group has not been created yet by calling 
     * 	<code>createContents</code>
     */
    public PathVariableElement[] getSelection() {
        if (variableTable == null) {
            return new PathVariableElement[0];
        }
        TableItem[] items = variableTable.getSelection();
        PathVariableElement[] selection = new PathVariableElement[items.length];
        for (int i = 0; i < items.length; i++) {
            String name = (String) items[i].getData();
            selection[i] = new PathVariableElement();
            selection[i].name = name;
            selection[i].path = (IPath) tempPathVariables.get(name);
        }
        return selection;
    }