How can apply a custom attributes in Technological table in Piping and build a report with the custom attributes.

BOM bill of materials 

Pipelinepipingreport 

Hello I have a client with this problem. They want add to report of piping the cost of installation and others custom attributes. The problem it is, when you want to add this attributes, this appears in the section properties but I can not use with the tech table. How is the correct use for this custom attributes for make the custom report? This report wan to create use the app of quality rules reuse.

I want to know the cost per meter for the pipeline. Label it is the cost per meter and you type it's real, for example. I use Label because I was create this custom attribute in my context. 

In the last imagen, I show you the list of attributes of Rigid Pipe.

I tried apply in this list the custom attributes and make to the report with that, but will not possible.

The release use it is 2021x.