https://community.graphisoft.com/t5/Libraries-objects/Q-PBC-Objects/m-p/238689#M9114 No, because Building Materials are not implemented at the moment in GDL so it is not available for any GDL-based elements.<BR /> Hopefully this is something that GRAPHISOFT will implement in one of the future releases of the program, but as of now (AC19) it is not yet available. Mon, 30 Nov 2015 18:28:05 GMT Laszlo Nagy 2015-11-30T18:28:05Z https://community.graphisoft.com/t5/Libraries-objects/Q-PBC-Objects/m-p/238688#M9113 <DIV class="actalk-migrated-content"><T>Is it possible to assign building materials to an object so that the object is considered in priority based connections?<BR /> <BR /> The GDL manual is a bit vague between surfaces and materials...</T></DIV> Mon, 30 Nov 2015 16:13:28 GMT https://community.graphisoft.com/t5/Libraries-objects/Q-PBC-Objects/m-p/238688#M9113 DGSketcher 2015-11-30T16:13:28Z https://community.graphisoft.com/t5/Libraries-objects/Q-PBC-Objects/m-p/238689#M9114 No, because Building Materials are not implemented at the moment in GDL so it is not available for any GDL-based elements.<BR /> Hopefully this is something that GRAPHISOFT will implement in one of the future releases of the program, but as of now (AC19) it is not yet available. Mon, 30 Nov 2015 18:28:05 GMT https://community.graphisoft.com/t5/Libraries-objects/Q-PBC-Objects/m-p/238689#M9114 Laszlo Nagy 2015-11-30T18:28:05Z https://community.graphisoft.com/t5/Libraries-objects/Q-PBC-Objects/m-p/238690#M9115 Thanks for clarifying. Fingers crossed for a GDL update. <IMG src="https://community.graphisoft.com/legacyfs/online/emojis/icon_smile.gif" style="display : inline;" /> Mon, 30 Nov 2015 19:49:36 GMT https://community.graphisoft.com/t5/Libraries-objects/Q-PBC-Objects/m-p/238690#M9115 DGSketcher 2015-11-30T19:49:36Z