Mirrored object does not automatically update

Hi,

This might be a stupid question but I am a very beginner. I have a simple sketch, say a curve. I mirrored it and I got two curves. But when I modified the original curve, say drag one of the control points, its shape changed but the mirrored curve keep unchanged - it does not update automatically.

Can anyone lend me a hand?

Thank you very much
Carlton

Hi Carlton - you must enable History, per command, for this to work as you hope.
https://docs.mcneel.com/rhino/7/help/en-us/index.htm#commands/history.htm?

-Pascal

Dear Pascal,

That’s precisely what I need to know!
Thank you so much!

Best regards
Carlton