Sure I could use a text editor, but that's not the point of having a dedicated find-and-replace tool now is it
I would like to have the option of finding and replacing text instances in multiple files, one by one. This should include regular expressions.
If there are in a directory with 1000 files approximately 10 files with only a few text instances of which some must be replaced and others not, it would be less work to confirm them one by one than to refine the regular expression until only the wanted text is found (and then unrefine it again to check if really all instances you wanted to replace are gone now).
I find it a pity having to leave TC for another F&R tool for these kind of searches. You have to fill in the path again, the search text again, then the new tool has to search in all those 1000 files again, etc...
Just add a check box next to the "in marked files" check box, that says something like "confirm each replace". When unchecked it is business as usual. When checked, you have to confirm each replace manually. This of course only has effect on the replace button. The search button still lists the whole shebang in one window.