Hi Peter,

Pega 7.1.8 uses CKEditor 4.3.x and this supports the MathJax plugin. Although, it's not recommended, you may add the plugins as follows:

The new plugin should be pushed into the plugin map pega.u.d.customRTEPlugins.

pega.u.d.customRTEPlugins = pega.u.d.customRTEPlugins || {}; /* Initialize the map if not initialized already. */

pega.u.d.customRTEPlugins["MyCustomPlugin"] = {

        init: function(editor) {

                editor.addCommand("cmdSayHello", {

                        exec: function(editor) {

                                alert("HELLO!");

                        }

                });

                editor.addCommand("cmdSayBye", {

                        exec: function(editor) {

                                alert("BYE!");

                        }

                });

                editor.ui.addButton("SayHello", {

                        label: "Say Hello",

                        command: "cmdSayHello",

                        icon: "webwb/pztick.png"

                });

                editor.ui.addButton("SayBye", {

                        label: "Say Bye",

                        command: "cmdSayBye",

                        icon: "webwb/pzcross.png"

                });

        },

        buttons: ["SayHello", "SayBye"]

};

In the code above "MyCustomPlugin" is the name of the plugin. A plugin definition needs to be pushed into the map associated with the name of the plugin.

Plugin definition should contain a method called "init" which gets called on plugin initialization. Inside this method, we can add commands and buttons.

A "command" is a named operation to be performed. The editor instance is available as the parameter to the command's exec method. Any of the editor API (CKEditor 4 Documentation) and other arbitrary JS code can be executed from within the command's exec method.

A "button" is a toolbar component. Each button has to be associated with a command. On clicking the button the associated command's exec method gets called.

Please note that any extra JS files can be added or referenced on the harness containing the section which contains the RTE.

I hope this helps.