I created Cube1 and Cube2 in the scene, and then dragged Cube2 onto Cube1: [001] Now, I select Cube1 and press Ctrl+D: [002] As a result, only Cube1 is copied, and Cube2 under Cube1 is not copied. Why?

[image] YuHoWe: My understanding is that it should be copied together with the child levels. They should not, why? What if I wanted to copy 1 item? You select 1, you copy 1. Shift / Ctrl Select what you need, right click → Group. Once you’ve done it, a single click selects the bunch: