How to configure Finder to let me rename dotfiles?

On macOS 10.15 Catalina through 12 Monterey, you now get a warning when you create or rename an "invisible" folder or file, but you are not longer blocked from renaming them.

On El Capitan (beta build 15A263e), I can not rename dot files and get this message:

I use the third party tool Transmit to make changes to invisible files and folders. I wish I knew a way to modify Finder to do what you ask, but someone trickier than I will need to step up with instructions if they are known.

Some time between 10.8 and 10.11 this was prohibited and some time between then and 12 it's allowed again.

I do not know what version of OS X you're using however I have no problem renaming dotfiles in Finder under OS X 10.8.5. That said, If your using a version of OS X that will not allow you to rename dotfiles in Finder and you do not want to use Terminal and the mv command, then a GUI option you can consider using is muCommander.