# Usage VCF Enhanced Rich Text Editor for Flow is an extended version of Vaadin Rich Text Editor with more functionalities like tab-stops, non-breaking space, rulers, customizing toolbar buttons and read-only sections. ##Tabstops can be set in UI by clicking on horizontal ruler, on top of the editor. There are 3 tabstop possible directions: Left, Right and Middle. * When Direction set to Left: then left side of text will be aligned to right side of tab stop (>text) * When Direction set to Right: then right side of text will be aligned to left side of tab stop (text<) * When Direction set to Middle: then text will be centered to tab stop (te|xt) When you click on ruler left tabstop will appear, then if you click on left tabstop it will change to right tabstop, and if you click on right tabstop it will change to middle tabstop. It is also possible to set tabstops programmatically by using tabStops property of editor. ## Non-breaking space To add a non-breaking space where the caret is located, press `shift+space`. ## Customizing toolbar buttons You can use `setToolbarButtonsVisibility` to show/hide the toolbar buttons. For example, the following piece of code hides Image and Link buttons. ### Server-side implementation This is the client-side (Web) component. Looking for the server-side version? It can be found here: https://vaadin.com/directory/component/enhanced-rich-text-editor ### Vaadin Prime This component is available in of Vaadin Prime subscription. It is still open source, but you need to have a valid CVAL license in order to use it. Read more at: https://vaadin.com/pricing