how change or select default chmod?

[only-sadeghi]

hi deare;
i use this and it is very good and awesome. thanks for it.
but i have an issue or(it can be a feature because i'm not found it). how can i set default chmod permissions for all file in any directory?
i use this script for upload my video on download hosting. default permission is 0644 that my users don't can see videos. so i should change it from cpanel. it not good.
please help me or add this feature to change chmod:

• set default chmod when upload(from file or from URL).
• set default chmod for custom directory.
• change chmod for all files/folders(by choos theme).

thanks :))