Love the app but have an idea

Dear snap chat if you are reading this I have an idea for a feature in the next update yall could add aw to keep certain people from seeing your story like before you post there should be a way that you can select who can and cant see you story like I have my some of my family on Snapchat and I dont want them seeing some of the stuff I put because most of the time they just get plain nosy dont get me wrong I love the app but there is room for improvement and new features

Fududjfyhtushchfjfjfhdhfhfgftf about Snapchat, v10.14.0.0