https://community.graphisoft.com/t5/Libraries-objects/Constraints-between-objects-amp-elements/m-p/186475#M15203 Not via GDL other than zones. GDL objects have no awareness of any other model elements (including other objects) other than the zone(s) in which they exist.<BR /> <BR /> Add-ons (plug-ins) created with the ArchiCAD API (programmed in C/C++) can associate objects with another element. That is what is done, for example, by the Accessories 'goodie' which associates wall or roof claddings with walls or roofs: the cladding is adjusted as the associated wall or roof is adjusted, and accomodates any doors, windows or skylights. Sun, 26 Aug 2012 14:48:49 GMT Karl Ottenstein 2012-08-26T14:48:49Z https://community.graphisoft.com/t5/Libraries-objects/Constraints-between-objects-amp-elements/m-p/186474#M15202 <DIV class="actalk-migrated-content"><R>Hello everyone, it's there any chance to have constraints between archicad elements (beam, column, roof, wall, etc.) &amp; gsm. objects? For example, if there is a beam, and i want that one parameter from my 3D gsm object, to be always constrained by the beam height. Thanks <IMG src="https://community.graphisoft.com/legacyfs/online/emojis/icon_rolleyes.gif" style="display : inline;" /></R></DIV> Sun, 26 Aug 2012 06:42:54 GMT https://community.graphisoft.com/t5/Libraries-objects/Constraints-between-objects-amp-elements/m-p/186474#M15202 Cosminn 2012-08-26T06:42:54Z https://community.graphisoft.com/t5/Libraries-objects/Constraints-between-objects-amp-elements/m-p/186475#M15203 Not via GDL other than zones. GDL objects have no awareness of any other model elements (including other objects) other than the zone(s) in which they exist.<BR /> <BR /> Add-ons (plug-ins) created with the ArchiCAD API (programmed in C/C++) can associate objects with another element. That is what is done, for example, by the Accessories 'goodie' which associates wall or roof claddings with walls or roofs: the cladding is adjusted as the associated wall or roof is adjusted, and accomodates any doors, windows or skylights. Sun, 26 Aug 2012 14:48:49 GMT https://community.graphisoft.com/t5/Libraries-objects/Constraints-between-objects-amp-elements/m-p/186475#M15203 Karl Ottenstein 2012-08-26T14:48:49Z https://community.graphisoft.com/t5/Libraries-objects/Constraints-between-objects-amp-elements/m-p/186476#M15204 Thank you Karl Mon, 27 Aug 2012 07:17:57 GMT https://community.graphisoft.com/t5/Libraries-objects/Constraints-between-objects-amp-elements/m-p/186476#M15204 Cosminn 2012-08-27T07:17:57Z