1) You can edit and modify the VPN providers list all you want. The template is set up with PIA servers per the OP
2) I'm not sure why it resets all the fields, I dont have that issue, as its my template and the changes I make are typically for my own use.... I will have to look into that. I created the template, but am by no means an expert at it!!
3) Read this post, remove the template URL and that should stop the issue HERE