Interface class as input or variable type

I know how to create it using the “promote” function, but there is any way to put it manually from the list?

It should be on variable type list in property editor when you click variable form the list and there even Interface category, you can use search to

Obviously it isn’t, that’s why I am asking for.

It should be, otherwise there something wrong with your interface, can you provide more details?

I want to put an the interface CLASS (interface interface), not interface object reference.

Oh, then sorry for misunderstanding. You can not do that out of the blueprints alone as UInterface is not declared as BlueprintType. You could do that if you would declare your interface in C++, which require deceleration of own UInterface, you would just need to add BleuprintType. here how you do interface in C++:

You can do by “promoting to variable” or promoting to input, etc. There should be a direct way :-/