Text(V2) edit in full screen

"When I use Wrench Icon and go full screen mode - I am not able to see all rte plugins."

That is because you did not follow the instructions in Ratna's article. If you install the package from Ratna artilce and open the dialog by clicking the wrench icon - you will see all of the dialog plug-ins appear. (it works here)

As explained in the article -- to get this results - you need to modify the JCR by adding these nodes.

Yes it works for a while.

Put a break point at bold text in developer tools in clientlib / all.js.

//extend toolbar builder to register insert image

    CUI.rte.ui.cui.CuiToolbarBuilder = new Class({

        toString: "EAEMCuiToolbarBuilder",

        extend: CUI.rte.ui.cui.CuiToolbarBuilder,

        _getUISettings: function (options) {

            var uiSettings = this.superClass._getUISettings(options),

                feature = ExperienceAEM.TIM_UI_SETTING;

            //uncomment this to make image insert available for inline toolbar

            /*if (toolbar.indexOf(feature) === -1) {

             var index = toolbar.indexOf("fullscreen#start");

             toolbar.splice(index, 0, feature);

             toolbar.splice(index + 1, 0, "-");

             }*/

            //add image insert to fullscreen toolbar

           toolbar = uiSettings.fullscreen.toolbar;

            if (toolbar.indexOf(feature) === -1) {

                toolbar.splice(3, 0, feature);

            }

            return uiSettings;

        }

    });

Put a breakpoint in richtext.js :

finish: function (isCancelled) {

      if (this.sourceEditMode) {

        this.editorKernel.fireUIEvent('disablesourceedit');

      }

      if (this._dispatchEvent(isCancelled ? 'beforeCancel' : 'beforeFinish')) {

        return undefined;

      }

      var context = this.editorKernel.getEditContext();

     var body = context.doc.body;

      var editedContent = this.editorKernel.getProcessedHtml();

      if (this.isActive) {

        CUI.rte.Selection.resetSelection(context, 'start');

        this.finalizeEventHandling();

        this.deactivateEditorKernel();

        this.$textContainer.removeClass('is-edited');

        this.textContainer.contentEditable = 'inherit';

      }

      this.textContainer.blur();

      body.spellcheck = this.savedSpellcheckAttrib;

      var ua = CUI.rte.Common.ua;

      if ((ua.isGecko || ua.isWebKit) && this.savedOutlineStyle) {

        this.textContainer.style.outlineStyle = this.savedOutlineStyle;

      }

      if (!this.options.preventDOMRewrite) {

        this.textContainer.innerHTML =

          (isCancelled ? this._initialContent : editedContent);

      }

      this.isActive = false;

      this._dispatchEvent(isCancelled ? 'onCancelled' : 'onFinished');

      this.$element.trigger(isCancelled ? 'editing-cancelled' : 'editing-finished',

        [editedContent]);

      return editedContent;

    }

once you pass through break points : look for js errors in console.

component behavior is not works as expected anymore. That is it, no consistent behavior after that.

You should report this to AEM Eng via a support ticket, I have never seen this behaviour before.