Thanks for your response. I think the way you propose is the correct one, but I fail to apply it in my context.
To be more specific, I have different datatable linked to the same structure (QG_A, QG_B, …) A, B, … depends of a text bind to a button. So text QG_ is static.
I send this datatable to the Game mode blueprint, to be able to access to it on another widget.
When I try your solution I certainly miss something important :
Sending to game mode :
Getting to the widget :
Compilation show no problem, but it seems that variable created with map, is empty…
In your exemple you set 2 map (data_1 and data_2), in my case I unable to set more than 1.
It’s why I put a Make map node, but the input value 0 ask me a datatable, and it is exactly what I want to avoid.