I have done exactly that, but with conjectural water to be shown with the permanent water symbol. Need to use a little metapost in your layout... #replace conjectural waterflow symbol with permanent symbol to improve visibility code metapost def l_waterflow_conjectural (expr Path) = l_waterflow_permanent_UIS (Path); enddef; endcode You need to do a similar thing with the definition of your debris and presumed wall lines to show instead as bedrock. Bruce -----Original Message----- From: Therion <therion-bounces@speleo.sk> On Behalf Of Pavel Herich Sent: Monday, 2 November 2020 20:27 To: List for Therion users <therion@speleo.sk> Subject: [Therion] Symbol assign Hi, when exporting maps to a large scale, I´d like to assign wall:debris, wall:presumed etc. to just "wall". "Symbol-assign line wall:debris wall:bedrock" in config file doesn´t work, any idea? Thank you Pavel _______________________________________________ Therion mailing list Therion@speleo.sk https://mailman.speleo.sk/listinfo/therion