Hi Pavel...
I don't get to use the ECAD options much, so I don't know enough about the ECAD_REF_DES to help yet. Is this a parameter that exists on each imported component? For example... when you import your board, does each component have ecad_ref_des set as a parameter in the parameter/relation tools? If not, where does it come from?
If I'm understanding correctly, you want to use the value of this parameter to extrude the reference designator on the component. You can do this with a simple text sketch as your extrusion. In sketcher, modify the properties of your text to use the parameter to drive the text string.
I feel like I need to know more before I can give better advice though. It sounds like you're trying to cut the reference designators into the models at the assembly level. You mention "component id"... and you'd only have a component id at the assembly. Are you trying to do these extruded cuts at the assembly? If so, do you absolutely HAVE to have them as extruded cuts? Would annotations suffice? We can create an annotation that updates based off the value of ecad_ref_des for each component automatically... if that's a viable option for you.
Tell me more about your situation and I'll be happy to help in any way I can!
Happy Holidays...
-Brian
