I'm just trying to make a project in console. I want to add some buttons. Is there a way to add a clickable button in console?
I tried to find some information, but I couldn't find anything. Some information says to use some graphics library like SFML. Is it really impossible?
The console is not usually used as a standard GUI, so no, you cannot add a clickable button to the console.
However, you can create your own GUI app using for instance SFML, as you mentioned, which is, however, especially for making 2D games rather than GUI apps with buttons, although it could be used for that purpose.
If you want to create a GUI app with buttons and etc., you can have a look at Qt framework or ImGui or any other C++ GUI library.
For the other alternatives check: Gui toolkits, which should I use?