The <p> insert on enter is common to all html wysiwyg editors.

You can always add/remove smilies by creating a custom button, displaying your own smilies container.

If you use the .Template method to specify the layout, you specify where to put dividers into the toolbar.

The following code add a button programmaticly:

    System.Web.UI.WebControls.Image ImageIngressCleanupCode = new System.Web.UI.WebControls.Image ();
    ImageIngressCleanupCode.ToolTip = "Fjern Word kode";
    ImageIngressCleanupCode.ImageUrl = "../images/cleanup.gif";
    ImageIngressCleanupCode.CssClass = "button";
    ImageIngressCleanupCode.Attributes.Add("onclick","_Format('rtbIngress','CleanupCode');"); 
    ImageIngressCleanupCode.Attributes.Add("type","btn");

Then add the button to the toolbar:

rtbIngress.toolbar.Add(ImageIngressCleanupCode);

Regards,

Thomas