Can someone add batch encoding to this x265 ffmp front end (written in ahk)

[ezcapper]

I have this front-end/batch script generator for ffmpeg h.265 encoding written in ahk. It is nothing special or unique. But I have since forgotten the ahk language and any type of simple coding. I am also struggling with my eyesight. If someone is feeling charitable, can they add batch encoding to this program? You can change the "Created by" line and put your name. Thank you. The source code file extension can be changed to .ahk or .txt and be opened in notepad. The source code file is at the bottom of the post.
program:
64bit
https://drive.google.com/file/d/0B695hmOChptNY3lJU0NGN1pUTDQ/view?usp=sharing
32bit
https://drive.google.com/file/d/0B695hmOChptNMlVIckhMS2x1eWc/view?usp=sharing

Source Code of exe file (exe file only works inside downloaded folder above):
https://drive.google.com/file/d/0B695hmOChptNRVFmVUdXcHBEQ1E/view?usp=sharing