For listing opening headers in a layout material list, BC Framer® and MiTek Structure are slightly different.
In BC Framer®, header inclusion is simple. You can turn on the Header here: Job Properties > Job Settings > Output > Layout Material List > Include > Wall Framing (set to varies) and turn on Headers.
In MiTek Structure you will have to turn "Headers" and "Panelized" under Wall Framing on before you will see the headers in a Wall Framing list. Or turn on Wall openings to see the header in the Opening list. The screen shot below is from MiTek Structure.