I'm not opposed to also having this, but imo it should be, like ctrl+shift+f or something.

That's how Android Studio works, for example. Ctrl+f brings up a find-replace subwindow at the top of the screen that works for that one file, but you can also do a "search across entire project" or "search across subdirectories" that comes up in a popup.

Second that - I specifically use npp for getting heavy search/replace done over multiple files.

I need these options!

search of nopad++ better than word and excel...