How to Change Template of Domain Creation

[boxygen]

In a given USER in vestacp I want all all subdomains to point to MAIN DOMAINS'S folder with and without https.

like this: /home/USER/web/MAIN-DOMAIN/public_html

The default in Vesta CP is /home/USER/web/SUB-DOMAIN/public_html

Can I define this in any template?

I have achieved this by editing the file and changing root directory mentioned below

/home/pakerp/conf/web/reseller1.pakerp.net.httpd.conf

But I am facing two problems in this.

1. Each time when I ceate a subdomain I need to edit this file.
2. Secondly When I create SSL Using Lets Encrypt it goes back to original setting.

So please guide me for these two problems.
1. The root directory of any new subdomain can be defined in any template for the USER
2. SSL application shall not affect the root directory.