disabling

Hi John

I will be starting to build a website next week and a developer friend has advised me to use your plug in. I just have a question for you. What is the best and easiest way to disable your plug in when the website is built ? Is it just a matter of unclicking the yes button and saving it and then should the website be visible ? Sorry if this sounds like a stupid question its just that I have never used this type of plug in before

https://ww.wp.xz.cn/plugins/ultimate-coming-soon-page/