insert files & insert pintures & insert pages possible??

FCKConfig.ToolbarSets["sample"] = [
   ['example']
] ;

FCKConfig.Plugins.Add( 'example' ) ;

function Example()
{}

Example.prototype.GetState = function()
{
    return FCK_TRISTATE_OFF;
}

Example.prototype.Execute = function()
{
// here you need to open a window, ui, interface, or just directly insert your text.
// I am using a popup window but fckeditor has a built in window system. look at the youtube plugin as an example
}

// Register the command.
FCKCommands.RegisterCommand('example', new Example());

// Add the button.
var item = new FCKToolbarButton('example', 'My Example Test Title');
item.IconPath = FCKPlugins.Items['example'].Path + 'example.png'; // graphic for button, should be in the same dir as this file
FCKToolbarItems.RegisterItem('example', item);

<script type="text/javascript">
var FCK = FCKeditorAPI.GetInstance('instance_name_of_editor');

// you could just insert the html. in this example I am using jquery to get the data and then sliding it into the editor
function insertHTML() {
    $.get('index.php?awesome_php_script=1') {
            FCK.InsertHtml(data);
        });
}