https://community.graphisoft.com/t5/Project-data-BIM/Demolitions-and-Proposals/m-p/97491#M8516 <BLOCKQUOTE>Millard wrote:<BR />You will need to spend some time adjusting the priority number in the layer dialogue box. Note that each layer can have a different priority number in each layer set. Have a different priority number means that the walls in those layers will not interact with each other.</BLOCKQUOTE> See picture:<BR /> <BR /> Woody<BR /><IMG src="https://community.graphisoft.com/t5/image/serverpage/image-id/10953i9D7C4FC3B88C0A2E/image-size/large?v=v2&amp;px=999" border="0" alt="intersection index.jpg" title="intersection index.jpg" /> Mon, 17 Jan 2005 19:26:01 GMT Anonymous 2005-01-17T19:26:01Z https://community.graphisoft.com/t5/Project-data-BIM/Demolitions-and-Proposals/m-p/97489#M8514 <DIV class="actalk-migrated-content"><T>I'm new to Archicad and would like to create a model of an existing building showing existing elements to be demolished and newly created elements. Previously I've worked solely in 2D and simply hid elements to be demolished when publishing my proposal drawing . However in Archicad if the existing elements are drawn and placed on a hidden layer they still affect newly created elements passing across them. Is there a way to overcome this?</T></DIV> Tue, 30 May 2023 11:04:44 GMT https://community.graphisoft.com/t5/Project-data-BIM/Demolitions-and-Proposals/m-p/97489#M8514 William Gray 2023-05-30T11:04:44Z https://community.graphisoft.com/t5/Project-data-BIM/Demolitions-and-Proposals/m-p/97490#M8515 You will need to spend some time adjusting the priority number in the layer dialogue box. Note that each layer can have a different priority number in each layer set. Have a different priority number means that the walls in those layers will not interact with each other. Mon, 17 Jan 2005 18:14:31 GMT https://community.graphisoft.com/t5/Project-data-BIM/Demolitions-and-Proposals/m-p/97490#M8515 Anonymous 2005-01-17T18:14:31Z https://community.graphisoft.com/t5/Project-data-BIM/Demolitions-and-Proposals/m-p/97491#M8516 <BLOCKQUOTE>Millard wrote:<BR />You will need to spend some time adjusting the priority number in the layer dialogue box. Note that each layer can have a different priority number in each layer set. Have a different priority number means that the walls in those layers will not interact with each other.</BLOCKQUOTE> See picture:<BR /> <BR /> Woody<BR /><IMG src="https://community.graphisoft.com/t5/image/serverpage/image-id/10953i9D7C4FC3B88C0A2E/image-size/large?v=v2&amp;px=999" border="0" alt="intersection index.jpg" title="intersection index.jpg" /> Mon, 17 Jan 2005 19:26:01 GMT https://community.graphisoft.com/t5/Project-data-BIM/Demolitions-and-Proposals/m-p/97491#M8516 Anonymous 2005-01-17T19:26:01Z