What the "Set Array Elem" node does exactly ?

Development Programming & Scripting Blueprint
1

https://docs.unrealengine.com/latest/INT/Engine/Blueprints/UserGuide/Arrays/ArrayNodes/index.html
Last one in the list .
What is the different of it and the “Insert” node ?

2

If you want to change the value of a given element thats already in the array you would use this node, as insert would insert a new object into the array.

3

Thanks !

It would be nice if their explanation would be as simple as yours .