https://community.graphisoft.com/t5/Project-data-BIM/Pen-set/m-p/72477#M13863 This is a bug. I've had this happen on jobs where no cutting/pasting/merging has taken place. Files just seem to inherit Pen Sets (and Custom Profiles) of other available files. Wed, 13 Jun 2007 15:39:23 GMT Laura Yanoviak 2007-06-13T15:39:23Z https://community.graphisoft.com/t5/Project-data-BIM/Pen-set/m-p/72475#M13861 <DIV class="actalk-migrated-content"><T>At what point are pen sets automatically generated. It seems that when I go into the element attributes-pens set it gets continually populated by new pens sets. I delete the ones except the ones I have made/want to use but the old ones and new ones keep coming back. Is there anyway to control this?</T></DIV> Fri, 26 May 2023 13:28:02 GMT https://community.graphisoft.com/t5/Project-data-BIM/Pen-set/m-p/72475#M13861 Anonymous 2023-05-26T13:28:02Z https://community.graphisoft.com/t5/Project-data-BIM/Pen-set/m-p/72476#M13862 I suspect it's when you copy/paste from another PLN, but I'm not completely sure of it. Wed, 13 Jun 2007 15:32:15 GMT https://community.graphisoft.com/t5/Project-data-BIM/Pen-set/m-p/72476#M13862 TomWaltz 2007-06-13T15:32:15Z https://community.graphisoft.com/t5/Project-data-BIM/Pen-set/m-p/72477#M13863 This is a bug. I've had this happen on jobs where no cutting/pasting/merging has taken place. Files just seem to inherit Pen Sets (and Custom Profiles) of other available files. Wed, 13 Jun 2007 15:39:23 GMT https://community.graphisoft.com/t5/Project-data-BIM/Pen-set/m-p/72477#M13863 Laura Yanoviak 2007-06-13T15:39:23Z