Hello Jungtae

No sure what is not working. Could you please confirm that you are clicking here? 

Sandrine

Of course, I did click the 'Edit button'. It did not show up the ZPL editor.

Once I click the button, the Zemax window was blicking.

Thanks,

J

Hi Jungtae,

Do you have multiple computer screens? I have seen a similar issue when I am using three screens. Particularly when those screens have different resolutions. Either the editor will hide behind another window, or the editor will be sent just off-screen (as is shown below). 

If you have multiple screens set up, please revert to 1 and try again. If you do not have multiple screens, let me know. 

Best,

Allie

You can try this option and see if you can see the ZPL now:

Let us know if that helps.