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So when I started modelling this character, I duplicated her leg so that whatever i do with her left leg (in screenshot) is mirrored on the opposite end. Now I want to merge the pelvis, which requires me selecting the edges of both legs. So how do I separate both legs (Cube and Cube.001)?

  • $\begingroup$ Did you use "Alt D" to duplicate the leg as an instance or a mirror modifier? $\endgroup$ Commented Aug 20, 2023 at 13:43
  • 1
    $\begingroup$ Hello why don't you simply use a Mirror modifier? $\endgroup$
    – moonboots
    Commented Aug 20, 2023 at 14:00
  • $\begingroup$ We prefer using the mirror modifier rather than instances for that purpose. Instances are for populating, modifiers are for modeling. You can delete one of the legs, then add a mirror modifier on the other. So long your object origin is in the center, you probably do not need to ever apply it untill you need to model in asymmetry. $\endgroup$
    – Lauloque
    Commented Aug 20, 2023 at 14:44

1 Answer 1


I'm assuming you used Alt+D which creates a linked duplicate of an object and copy's any geometry changes in both meshes. You can separate them by selecting on one of the legs, and then going to the Object > Relations > Make Single User > Object & Data menu option. Now you should be able to edit them seperately.

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