Hello MeMe,
Instanced Meshes share the same mesh data, so it’s not possible to change the mesh of just one instanced mesh. My solution would be to create the number of Instanced Static Mesh components you’ll need, and make an array of locations for each. Another idea would be to create a struct, with a field that identifies which Instanced Static Mesh component to target and a vector, make an array of the type of the mentioned struct. You can then loop of the array and target the static mesh component you need, and spawn an instance at the given location.
Hope that helps. Just let me know, if you need further assistance or if you have any questions.
Regards,
Vecherka.