CSE HTML Validator's main page displaying several toolbars and allowing you to open html files 

The Replace panel offering you several options for replacing a word with another 

The Validator Engine Options, adjust the settings for the validator, logging, tools and network 

CSE HTML Validator Integrated Editor Options allows you to set the editor's options: html, file types, file options, editor and general 

The Spelling Options, adjust the options for the spelling and select the dictionary