Sneak Right Click for setting a bed spawn

It would be great if you could go on trips and sleep without losing your spawn at your bed at home.

How about if you could set your bed spawn by right-clicking while sneaking with an empty hand on the bed?

If you don't have a bed spawn, it will be set when you sleep, but if you have one, you have to use this method.

So you can go on long trips without losing your spawn. It would also be easy to implement, since you don't have to invent anything new.