CKEditor displays strange characters

 Add this code to your config.js file and see if it helps:

config.entities = false;

 

What toolbar buttons are available in CKEditor 4?

 https://stackoverflow.com/questions/13828383/what-toolbar-buttons-are-available-in-ckeditor-4

https://ckeditor.com/old/forums/CKEditor/Complete-list-of-toolbar-items#comment-123266

Here is a nice list of button names:

Complete List of Toolbar Items for CKEditor

items

• "Source"
• "Save"
• "NewPage"
• "DocProps"
• "Preview"
• "Print"
• "Templates"
• "document"

items

• "Cut"
• "Copy"
• "Paste"
• "PasteText"
• "PasteFromWord"
• "Undo"
• "Redo"

items

• "Find"
• "Replace"
• "SelectAll"
• "Scayt"

items

• "Form"
• "Checkbox"
• "Radio"
• "TextField"
• "Textarea"
• "Select"
• "Button"
• "ImageButton"
• "HiddenField"

items

• "Bold"
• "Italic"
• "Underline"
• "Strike"
• "Subscript"
• "Superscript"
• "RemoveFormat"

items

• "NumberedList"
• "BulletedList"
• "Outdent"
• "Indent"
• "Blockquote"
• "CreateDiv"
• "JustifyLeft"
• "JustifyCenter"
• "JustifyRight"
• "JustifyBlock"
• "BidiLtr"
• "BidiRtl"

items

• "Link"
• "Unlink"
• "Anchor"

items

• "CreatePlaceholder"
• "Image"
• "Flash"
• "Table"
• "HorizontalRule"
• "Smiley"
• "SpecialChar"
• "PageBreak"
• "Iframe"
• "InsertPre"

items

• "Styles"
• "Format"
• "Font"
• "FontSize"

items

• "TextColor"
• "BGColor"

items

• "UIColor"
• "Maximize"
• "ShowBlocks"

items

• "button1"
• "button2"
• "button3"
• "oembed"
• "MediaEmbed"

items

• "About"