https://community.graphisoft.com/t5/Project-data-BIM/Automatic-layering/m-p/20500#M9095 Purge Layers is available in <B>Options &gt; Attribute Manager</B><BR /> <BR /> Because objects serve so many different functions they will end up on many different layers. Look at the layer name in the info palette before placing them and option/alt click on elements that are already correct to pick-up the settings.<BR /> <BR /> You will need to think of layers differently in ArchiCAD than you are probably accustomed to. The onion skin analogy is not appropriate in a building model. It is best to think of layers as collections of things that need to be turned on and off together. Remember that one "layer" could contain a complete model of a multi-story HVAC system. This is hardly analogous to a drafting overlay. Tue, 30 Mar 2004 23:03:08 GMT Anonymous 2004-03-30T23:03:08Z https://community.graphisoft.com/t5/Project-data-BIM/Automatic-layering/m-p/20499#M9094 <DIV class="actalk-migrated-content"><T>Does Archicad automatically put library objects in it's own layer? It appears AC puts things in whatever layer is current at the time. Is that true, or do I have some setting turned off (or on)<BR /> <BR /> The default drawings has 37 layers when first opened. I know I can add more or purge layers. Is there a way I can tell if a layer has anything on it before I purge it. It would be good if there was a way to purge only empty layers. <BR /> <BR /> Am I missing some concept here? Maybe I'm just used to AutoCad. I do miss that feature.<BR /> <BR /> Thanks.</T></DIV> Tue, 30 May 2023 11:06:53 GMT https://community.graphisoft.com/t5/Project-data-BIM/Automatic-layering/m-p/20499#M9094 Tom Krowka 2023-05-30T11:06:53Z https://community.graphisoft.com/t5/Project-data-BIM/Automatic-layering/m-p/20500#M9095 Purge Layers is available in <B>Options &gt; Attribute Manager</B><BR /> <BR /> Because objects serve so many different functions they will end up on many different layers. Look at the layer name in the info palette before placing them and option/alt click on elements that are already correct to pick-up the settings.<BR /> <BR /> You will need to think of layers differently in ArchiCAD than you are probably accustomed to. The onion skin analogy is not appropriate in a building model. It is best to think of layers as collections of things that need to be turned on and off together. Remember that one "layer" could contain a complete model of a multi-story HVAC system. This is hardly analogous to a drafting overlay. Tue, 30 Mar 2004 23:03:08 GMT https://community.graphisoft.com/t5/Project-data-BIM/Automatic-layering/m-p/20500#M9095 Anonymous 2004-03-30T23:03:08Z