Currently search and replace dialogs work great, and they look like in Windows Notepad.
Which is not very handy nowadays, many IDEs provide search capabilities using toolbars and many has "Wrap around" feature, which is simply jumping from last search result to first. And nowadays IDEs even don't have that "up/down" option, they just have "next/previous" instead. I will try to implement it, using same search engine. My code is not very good, of course you could make it much better, but I understand that you are busy and will try to make it on my own.