Different editor tool buttons for normal editors and administrators. Read more over at my blog: http://world.episerver.com/blogs/Per-Nergard/Dates/2016/10/special-editor-toolbuttons-for-administrators/

XhtmlSetting.cs

using EPiServer.Core;
using EPiServer.Core.PropertySettings;
using EPiServer.Editor.TinyMCE;
using EPiServer.Security;
using EPiServer.ServiceLocation;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;

namespace AlloyDemoKit.Business
{

    [ServiceConfiguration(ServiceType = typeof(PropertySettings))]
    public class DefaultTinyMCESettings : PropertySettings<TinyMCESettings>
    {
        public DefaultTinyMCESettings()
        {
            IsDefault = true;
            DisplayName = "Standard";
            Description = "Standard profil. Får ej redigeras";
        }

        public override TinyMCESettings GetPropertySettings()
        {
            IPropertySettingsRepository PropertySettingsRepository = EPiServer.ServiceLocation.ServiceLocator.Current.GetInstance<IPropertySettingsRepository>();

            //We need to dupecheck buttons because else we get weird behavior
            var addedButtons = new Dictionary<string, string>();

            //Load propertysettings
            var allWrappers = PropertySettingsRepository.GetGlobals(typeof(TinyMCESettings));
            var ordinaryWrapper = allWrappers.FirstOrDefault(x => x.DisplayName.Equals("Ordinary", StringComparison.InvariantCultureIgnoreCase));
            var xordinaryWrapper = allWrappers.FirstOrDefault(x => x.DisplayName.Equals("ExtraOrdinary", StringComparison.InvariantCultureIgnoreCase));

            //Combine settings
            var settings = new TinyMCESettings();

            //Copy from ordinary
            if (ordinaryWrapper != null)
            {
                var ordinaryWrapperTinySettings = ordinaryWrapper.PropertySettings as TinyMCESettings;
                CreateToolbars(settings, ordinaryWrapperTinySettings, addedButtons);
            }

            //Add xtraordinary settings for specific roles
            if (PrincipalInfo.CurrentPrincipal.IsInRole("administrators") && xordinaryWrapper != null)
            {
                var xordinaryWrapperTinySettings = xordinaryWrapper.PropertySettings as TinyMCESettings;
                CreateToolbars(settings, xordinaryWrapperTinySettings, addedButtons);

                // Add the default non-visual plugins that replaces built in functionality with EPiServer specifics.
                settings.NonVisualPlugins.Add("advimage");
                settings.NonVisualPlugins.Add("epifilebrowser");

                settings.Height = 200;
                settings.Width = 600;
            }

            return settings;
        }

        public override System.Guid ID
        {
            get { return new System.Guid("a6fe936f-190d-45e2-b83c-ccc0501a7312"); }
        }

        private void CreateToolbars(TinyMCESettings toSetting, TinyMCESettings fromSetting, Dictionary<string, string> addedButtons)
        {
            int duplicateKeyFound = 0;
            int buttonsInRow = 0;

            foreach (var row in fromSetting.ToolbarRows)
            {
                var toolBarXtraOrdinary = new ToolbarRow();

                duplicateKeyFound = 0;
                buttonsInRow = row.Buttons.Count;

                foreach (var button in row.Buttons)
                {
                    if (!addedButtons.ContainsKey(button))
                    {
                        addedButtons.Add(button, button);
                        toolBarXtraOrdinary.Buttons.Add(button);
                    }
                    else
                        duplicateKeyFound++;
                }

                if (buttonsInRow != duplicateKeyFound)
                    toSetting.ToolbarRows.Add(toolBarXtraOrdinary);
            }

        }
    }
}