Get multiple location with another node than even begin play

Hello,

I am practicing the blueprint scripting tool with unreal 4.

In the level I am building, I need to trigger multiple animation with a delay when the player enters in a trigger zone. It causes protective glasses from the room to cover all the windows (4 in total).
To create the animations, I am using a Timeline with vectors track and it requires to get and set all the initial locations of the protective glasses. To create the sequence of the glasses going down, I am stringing one after the other the animations with a delay.

The question is the following. To get all the location, I linked my Event begin play with a sequence nod that takes the four locations. I was wondering if there is an alternative to do that to save my node Event begin play and hence avoid to use a sequence node to get and set the initial locations of the protective glasses?

Thank you!

Do the locations change? can you show a pic of your blueprint?

Also if this is a triggered event and the locations do not move I think there may be a much easier way to do this.