anyone can teach me how to do RO:Zero Smartcast script on my local server?

[aoshinho]

if anyone can help, or can explain how it works and how to configure in rathena or client

 

Quote

smart cast
At ROZero we have an exclusive SmartCast system. By default, smartcast is enabled, but if you prefer, you can disable or enable it at any time by typing in chat/smartcast.
Functionalities
Quick Auto Cast
At any time, safely switch to casting skills on yourself.
Skill Spam
Hold down the skill's shortcut key to keep using it until it becomes available.
Autocast on Marked Target
By placing the cursor over a target, you activate it as your current target. Using offensive skills even without having the cursor over them causes them to be automatically cast on them.
Target Validation Statement
When placing the cursor over a target, a circle will appear over the target, indicating the current type of battle between you and the target.