Can you stream levels via a saved Blueprint?

I want to create a blueprint for a door will load a new level before it opens and unload the old level after it closes .
The current Blueprint layout looks like this.

This layout will work in level blueprint , but when it is a saved Blueprint there is an error message that says “Pin Target Must have a connection”.
I want it as a saved blueprint so I can easily drag it into a level then change the name of the levels that are loaded and unloaded.

While I think in most cases you are going to be better off using the functions from the level script we’ve previously discussed making them usable from anywhere and decided to go ahead and do so.

Thanks for the feedback.