@User it is almost certainly possible, the scripting features of KLayout are quite capable although a little bit hidden from the user. Here are some links that are probably useful: https://www.klayout.de/forum/discussion/1263/net-tracer-script-problem https://www.klayout.de/doc-qt5/code/class_NetTracer.html https://www.klayout.de/doc-qt5/code/index.html

great, thanks! I'm also looking at https://github.com/KLayout/klayout/blob/f8e7e3b6e16ac8e90c5d17458f078619854892f9/src/plugins/tools/net_tracer/db_plugin/dbNetTracer.cc#L347 to see how it is done in the app