The spelling of the word "more bifold" is fairly straightforward. The word "more" is pronounced /mɔr/ and means an amount greater than what is currently present. The word "bifold" is pronounced /baɪˈfoʊld/ and refers to something that can be folded in half, such as a wallet that has two sections. So together, "more bifold" would indicate a greater amount of something that can fold in half, such as more wallets with two sections or more doors that fold in half.