[FIND] Add replace function when searching on plain text

It would be nice to have a replace function when searching text.

When I use the find function to search certain styles, a list of results is shown. But there is no replace function to replace the text I was searching on with another text. This would be very handy certainly when I change a CSS style.

This function also does exist when I select te find function on screen/action/entity etc

I'm using 5.0.2.24 so It's maybe added in 5.1?