Hi gianc64 I presume you are referring to the Xtherion map editor. All drawing is done on a single layer, although background images could be though of as each being on their own layer. They can be made visible or not on an individual basis. When your drawing file is processed and you choose to export to pdf, then the pdf file often contains layers. User control of these is only indirectly available, in fact it's not really control, more a consequence of the types of entities that are exported - ie cave maps, previews, surface. Hope that helps Bruce _____ From: therion-bounces@speleo.sk [mailto:therion-bounces@speleo.sk] On Behalf Of gianc64 Sent: Friday, 4 June 2010 1:57 a.m. To: therion@speleo.sk Subject: [Therion] Multiple layer in editing mode Hi, I am new to list and I have this question: It's possible for Therion to work in Editing mode with multiple layer? Thanks in advance gianc64