For the life of me I can't figure out what do you call these type of messages or where in the library I can find them. I want user to use a command and then in the same channel they get a response but I want the response to be one of those when its hidden from other users and they can click on dismiss to get rid of it.
Here is an example
Edit: figured out the name: Ephemeral. But still having problems getting it to work on a slash command, please see my examples below.