https://community.graphisoft.com/t5/Collaboration-with-other/Pset-Spec/m-p/235710#M30292 I have the INT version but I do not see this Pset.<BR /> I think it was created in this Dialog. This can be seen from the fact that it has a red X before its name. If you click the red X, the Pset_Spec set will be deleted. IFC Properties can be deleted only if they were user created, default IFC Properties cannot be deleted in any way, as far as I know.<BR /> <BR /> So if you don't need it I think it is safe for you to just delete it. Thu, 08 Jan 2015 01:10:09 GMT Laszlo Nagy 2015-01-08T01:10:09Z https://community.graphisoft.com/t5/Collaboration-with-other/Pset-Spec/m-p/235709#M30291 <DIV class="actalk-migrated-content"><T>Please see questions on screen shot regarding Pset_Spec.<BR /> <BR /> Can not locate IFC option within AC 18?<BR /> <BR /> Is it in your version of AC 18 ?</T></DIV><BR /><IMG src="http://community.graphisoft.com/t5/image/serverpage/image-id/70846i3EF32EA83E006C6C/image-size/large?v=v2&amp;px=999" border="0" alt="Screenshot_010715_Pset.jpg" title="Screenshot_010715_Pset.jpg" /> Wed, 07 Jan 2015 21:22:59 GMT https://community.graphisoft.com/t5/Collaboration-with-other/Pset-Spec/m-p/235709#M30291 Michael 2015-01-07T21:22:59Z https://community.graphisoft.com/t5/Collaboration-with-other/Pset-Spec/m-p/235710#M30292 I have the INT version but I do not see this Pset.<BR /> I think it was created in this Dialog. This can be seen from the fact that it has a red X before its name. If you click the red X, the Pset_Spec set will be deleted. IFC Properties can be deleted only if they were user created, default IFC Properties cannot be deleted in any way, as far as I know.<BR /> <BR /> So if you don't need it I think it is safe for you to just delete it. Thu, 08 Jan 2015 01:10:09 GMT https://community.graphisoft.com/t5/Collaboration-with-other/Pset-Spec/m-p/235710#M30292 Laszlo Nagy 2015-01-08T01:10:09Z