Rtf text editor
For the Rtf text editing the RichText component has the special editor. This editor is able to load and save the Rtf text, change a font, font size, text color, insert expressions etc. Using this editor you can do anything with your Rtf text without other editor's assistance. The editor is called when double-clicked in the RichText component.

Loads a text from a file
Saves a text in a file
Insert expression
Undo/Redo
Font options
Font name and size
Font setting
Text color
Text alignment
List