You can create an Adobe Experience Manager (AEM) 6 Touch UI component that contains a Rich Text Editor (RTE). As a component developer, you can configure the RTE when developing the component. The Rich Text Editor provides authors with a wide range of functionality for editing their textual content; providing them with icons, selection boxes and menus for a WYSIWYG experience.
To configure the Touch UI RTE, you work with JCR nodes in the AEM JCR. You do not have to write code or script. To read this AEM community article, click https://helpx.adobe.com/experience-manager/using/configure-touchui-rte.html.