Nginx load SSL certificate after update .crt .key file, without "nginx reload"

Question

In my case, I need to change .crt and .key SSL certificate files many times, and always after this we need to use "nginx reload" for changes to apply.
Nginx reload is not good for me, there are many workers who are waiting for the completion of the old connections. Is it possible for nginx to catch the change of .crt .key files on the fly, without nginx reload? Maybe some modules exist for this?