I'm playing Minecraft on the keyboard for the first time, as I've only ever gambled on the controller so far.
But now I have a problem with which I'm not quite clear:
I have assigned "crouch" to the "R" key, but I want to set it up so that I only have to press the key once and then I remain crouched until I press the key again.
Can someone tell me if you can adjust that somewhere?
No not possible. That's stupid I know but Minecraft doesn't want that
This is actually possible, but not in vanilla. You have to download Labymod or Badlion Client and activate Togglesneak there.
No, but if you operate your keyboard with the left you can crouch on shift, and while you are walking with WASD you can crouch with your little finger. It takes a while to get used to it, but it works best (for me and my friends). (By the way, you can also do sprint with ctrl.
I think there's a setting outside of the keybinds. Somewhere in a different general category.