@User thanks, can you share an example that does that?

@mehdi: Here's an example using the python interface; not sure which one you're using, but they are all almost the same. There are 2 instances in

spm.placement.def

. The

create_custom_net.py

script will create a net and connect two pins from those instances (provided you have the opendbpy python module installed). Run it with:

python3 create_custom_net.py
openroad -exit route.tcl

Thanks @Ahmed Ghazy. I need to figure out how to install the opendbpy module

Let me know if you are having trouble

This works fine!