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I tried saving my layout layers into different files. I tried several different approach. For example, I hid unwanted layers, and in "save as" dialog for OASIS I chose to save visible layers only and not to save PCell information.
However, then I opened the new file, other layers were still there. Even if I deleted them from before saveing the file. Also, the result was the same with GDS. I was a bit confused.
Then I tried converting all PCells to static using the function Edit->Layer menu. Now, the saved file only had the visible layers.
This might be a bug or just a confusing use case. Anyway, I thought I should report it.
Could you please give some tips, how to easily save layers into different files in a script? Should I again first convert to static? How to do that in a script?