Missing recipes in stonecutter (nether brick fence)

Some blocks are still missing its recipe in the stonecutter that have its counterpart or are posible to make via crafting table.

• Nethe brick fence (nether brick wall has its recipe in the stonecutter)
• Stairs (they are missing recipe made out of full blocks variants, such as chiseled stonebricks into stone brick stairs, pillars into stairs....
• Slabs, same problem of stairs.

 

This would be related to MC-142915 as it pointed out the missing recipe of smooth stone slabs