How can I a read in a DEF from a previous run and then route it?

[jarvis-lorry]

I have a DEF saved from a design run that I did with an earlier version of OpenLane and I would like to read it in to OpenLane right now and have it rerouted and completed. Is there an easy way to simply read in a DEF, have OpenLane keep CTS elements and cell placement but ignore all of the metal lines, replacing them with new routed lines?

[vijayank88]

@jarvis-lorry
If you're using through interactive mode use:
set ::env(CURRENT_DEF) path2DEF.def

[jarvis-lorry]

Thank you, @vijayank88. I've been able to bring in a different DEF file after running the interactive steps up to CTS.