Thanks for your reply. Applying the factors you said to me,
1. I needs "Scroll Trigger ", and some method like "to","from", timeline (I still don't know well methods, I am studying )and so on". and widh this, I want to make some page to advertise my goods( tea, cup...) in my online-shop(this is my shop that I run). I have 2 jobs. And also as a web developer, I will make webpage for customer that he or she wants. This webpage is maybe shoppingmall or promotional page to sell their product.
2. I will not sell the web-site theme through theme-forest or like that. But just for my online market, and customer's online-shop.
3. I am personal freelancer developer. So I still don't have team to develop with.
4. It's a shame, but I can't support much right now. However, if things are getting better and more and more contracts with other companies, would I able to support you?...I'm looking for a plug-in that can be used without any burden now.