Down + Jump Option for shield drop, please!#839

It was the main way to shield drop in NASB2 and I found it infinitely more useful and intuitive than any prior method. The current shortcut of two shield buttons is nice but a bit cumbersome seeing as it makes you need two shield buttons on your control scheme. A toggle in advanced controls for down + jump out of shield to perform it would be fantastic and I think in line with rivals other streamlining notions with movement tech. Thank you!