First of all, the model in LUMION can't be mirrored, the imported model can be changed in the model software you use, or you expressed an error and wanted to say group copy? Press and hold the CTRL key, use the left mouse button to pull the box to select the object, and finally press and hold the CTRL key to select the movement and start the movement. Note that the plants in Luli will rotate automatically if they are copied directly. Other plants are fine, and hedges will definitely make you sick ~ ~ ~