Family Instance Mirror its own axis


I’m quite a new user here. Trying to figure out any way to mirror family instances on its own axis.

I’ve explored the option of flip and hand orientation, but the workflow can not accommodate that.

Is there any way to achieve this? mirroring family instances on its own axis?

Thanks in advance.

The flip/hand is the way to do that, either that or you need to generate the mirror plane programmatically.

Can you provide more description on your workflow, family?

Thank you for the reply and the script.

It is very useful.