I am making a theme, in that I have created some custom blocks for guttenburg but the problem is how the user can use the guttenburg blocks if he/she switches to classic editor.
For an example,
Let suppose I have created a button block ( I know it's already there ) but a custom one so how the user is able to access it, when he/she swithces to the classic editor.
Is it really possible or not. If yes than how.