Newsletters and users groups

What`s new
Added: plain text formatting. What does this mean? Now You can uses a simple formatting for nodes of plain text: font and him attributes (bold, italic and etc), font size, colors of background and text, can uses format styles and many more.
Added new features in the Quick Settings menu. Improve color choosing dialog: is shown command name in the caption. Many fixes and improvements in the dialog "Replace" (text in the editor).