I'm assuming you are talking about a script that automatically installs proxies on the account. Normally, hosts just put the proxies on a special server with a special plan, and let the user install the proxy scripts themselves.
im kinda new to proxies anyways. i want to be able to just enable something to allow my customers to make a proxy on there account and still be able to sell normal hosting on the server too
Setting up a proxy on your cpanel is really simple! Just provide them the basic instructions of ftp upload of the script and ur all ready