nl_tokens: Create a new button in the toolbar
pl_tokens: function createButton ( opts ) { opts = $ . extend ( { // Aria label for the button label : '' , // Icon to show <mask> : '' , // Inner text text : '' , // Right or left position position : 'left' , // Other class name to add to the button className : '' , // Triggered when user click on the button onClick : defaultOnClick , // Button is a dropdown dropdown : null , // Position in the toolbar index : null , // Button id for removal id : generateId ( ) } , opts || { } ) ; buttons . push ( opts ) ; updateButton ( opts ) ; return opts . id ; }