Hi Matthias,
Thanks a lot for yourt quick answer,it will be helpful, i'll fix my code following your advises and i think i've enough inforfomations now to succeed.
Have a good day and congratulations for your job, klayout is a great app.
Best Reg…
For information, i've just found this topic on the forum: http://klayout.de/forum/comments.php?DiscussionID=5&page=1#Item_1
It answers partially, and i can do what i wanted through GUI as explained in the message. But i'm unable to find how to …