If you want to display the content you have entered in the Default text property of your Editable text web part to an editor’s field to make it editable on a Page tab, please open the ~\CMSWebParts\Text\editabletext.ascx.cs file and update the code as it is shown below. The code is located around the line 711 in the LoadContent() method:
…
case CMSEditableRegionTypeEnum.HtmlEditor:
// HTML editor
if ((forceReload || (!RequestHelper.IsPostBack()) || (viewMode != ViewModeEnum.Edit)) && (this.htmlValue != null))
{
if (content == "") this.htmlValue.ResolvedValue = DefaultText;
else this.htmlValue.ResolvedValue = content;
}
break;
…
-jh-