Thank you! I tried it on different versions.
In version 5.3, the node doesn’t exist, there is a “Set Material Index” node instead.
In version 5.4, the node ‘Set Material Info’ exists. Strangely, though, you don’t have the option to split the struct pin because “it may be missing Blueprint exposed properties!” and I don’t know how to solve it.
The version 5.5 has the ‘Split Pin’ option for this node just like that, as you already showed.
Thank you very much!