New in v16+ is the ability for CSE HTML Validator to monitor the clipboard for new documents to check.
•Watch the clipboard for HTML documents and open a new tab when detected - Check this box to monitor the clipboard. When text is copied to the clipboard while CSE HTML Validator is not in the foreground (is not the active application), and the first non-whitespace character of the clipboard text is '<' and the text contains "<!DOCTYPE html", then a new document tab is opened and it is filled with the clipboard text. This option is not enabled by default.
•Auto validate documents from the clipboard - Check this box to automatically validate any new document tabs that are opened from watching the clipboard. This option is not enabled by default.
•Bring application to foreground when opening a new document tab - Check this box to bring CSE HTML Validator to the foreground when any new document tabs are opened from watching the clipboard. This option is not enabled by default.