When you need to rename more files or folders, check one of them, press F2 (or PPM and choose Rename), write its final name and press Tab. This will drive Explorer to renaming of next file in the list. This way, you don't have to check, rename and confirm every renaming. When you finish renaming, just confirm by pressing Enter or clicking elsewhere.
I also has a tip about the rename.
You can using shift to highlight/select many files, click F2, write as xxx (22), then it will rename start from xxx (22), xxx (23), xxx (24)....
Or
You can just write as xxx, and the system will rename as xxx (1), xxx (2), xxx (3)...