Creating the table header

Hello!

My concept has several fixed properties (code, name, comment, etc) and I'm going to create an editor for the list of such concepts. It should look like a table.
The best solution is horizontal collection for concept properties and vertical grid layout for the list. But I'm failed to create the table header. I want to add the first line for my table with bold constant headers.
Any ideas?

Thanks,
Alexey