Add Non-Modal HUD Toggle
This is for a Mouse to interact with the Hud (Layer) Elements.
Single Key to toggle Modal/Non-Modal mode. The Terminal interface basically does this already except instead of a massive view blocking overlay, individual Terminal options could be accessed as popup windows in the main Hud.
Non-Modal Mode disconnects mouse from entity control (Player/Grid) and Exposes HUD elements to enable clickable areas on them, for example, Toggle on/off dampers. Right click a toolbar item to change it's setting without having to open G-menu, and allow controls such as additional panels for mods