Some progress has been made with selecting and assigning keybinds, perhaps with build updates.
More control keybinds can now be assigned, though with intermittent consistency and either no action taken, or varying combinations of actions apparently triggering editable status, such as:

• unbinding a keybind
• resetting the default key
• changing the control page and going back
• accessing control settings when pausing the game
• exiting the game and accessing settings from the main menu

Keybinds editable in one settings access session may or may not be editable on the next occasion.

A few certain keybinds cannot be edited at all, including talk over radio functions and engine start / stop.

Many toggle keybinds do not function when assigned, though their normal hold-key counterparts do, including freelook, lean and sprint, although toggle perspective does function.

It has now been possible to bind all controls except Common > Talk over radio (Toggle), which appears to be stuck on 'Double Caps' and does not rebind or unbind.

It is still not apparent how to set hold or double tap keybinds, though two-key combinations such as Alt+Key do bind.

In use, toggle binds such as Freelook and Sprint require a double press of the bound key to function and Lower Weapon requires a triple press.