Seamless Travel is not implemented in BP

Blueprints don’t have the possibility to Seamless Travel out of the box.

First, you need to use the “Execute Console Command” Node to initiate a Travel.
Second, There is no GetSeamlessTravelActorList(the abscence of it makes seamless travel kinda useless) in BP and there is no PostSeamlessTravel Event exposed like in C++.

I would appreciate if there is a better documention for seamless travel. Which event gets called when etc.
For example, is BeginPlay executed after a Seamless Travel?How do I catch whether I used Seamless Travel or not?