Ever since I discovered that you can assassinate mobs by staffing upwards and grappling them up i've been doing it a lot.
It's very satisfying but i hate when an edge is too close and my grapple just snaps there instead.
I'd rather if there was an option to have your magnet try to attract towards mobs first radius, perhaps when holding some key or something.

Also, to avoid flooding you with requests, also make it possible to edit your existing grappling hook without having to store copies of the edit table with the NBT