GeneratedDynamicMeshActor - Custom functions not callable?

I’m currently making use of a blueprint that inherits from the GeneratedDynamicMeshActor class. I have added some functions that I would like to be able to call from other blueprints. I originally thought that that would be quite straightforward by simply casting to that blueprint and then calling the desired function. The functions, however, aren’t displayed?

Is that a restriction of the GeneratedDynamicMeshActor class? I recall reading something along those lines… Are there any good workarounds if that is the case?