Expose Interface Type in Editor

Hi.

I want to build an inventory System.
I have following Setup:

Item Interface:
Display Mesh, Name, Category etc.

(For Example)
Pistol Item:
Implements Item Interface.

What I now want is something like this:

PickupActor:
Placeable in the World. Should store a Variable which Item is on the Ground.

But UE does not allow selecting Assets implementing this interface.

Unbenannt.jpg

Is there a workaround for this?