Custom Server Channel Warning

My friends and I talk about movies, so of course there would be some spoilers for those who haven't watched a certain movie/show. We tried using the NSFW channel warning but some of my friends couldn't access it. Also it would be really fun to have a custom server warning where you can put a little description on what kind of content you are talking about in a certain channel. (e.g.) Channel Warnings for Movies, Channel warnings for Cursed Memes, etc. Give us the ability to customize the warnings, Discord.