Intellij idea auto import across files

I have auto import enabled in idea, but it requires me to open the file in the editor (like it should). Now, i have done some regex magic, which means across 100+ classes i am using new classes that need to be imported. Since its all done with find/replace, those files have never been opened in the editor, and therefore the new classes havent been auto imported. Is there any way to run auto import unambiguous references across all files? cause currently, i have to compile, and then open all the files from the errors window? Optimize imports aparently doesnt do new imports.